Fitbit Sense 2 User guide

User Manual
Version 1.0
TableofContents
Getstarted7
What'sinthebox7
Chargeyourwatch8
SetupSense29
SeeyourdataintheFitbitapp10
WearSense212
Placementforall-daywearvs.exercise12
Fastentheband13
Handedness14
Wearandcaretips15
Changetheband15
Removeaband15
Attachaband16
Basics17
NavigateSense217
Basicnavigation17
Buttonshortcuts18
Quicksettings19
Tiles21
Adjustsettings21
Display21
Vibration&audio21
Notifications22
Goalreminders22
Quietmodes22
Shortcut22
Voiceassistant23
AboutSense223
Checkbatterylevel23
2
Setupdevicelock24
Adjustalways-ondisplay24
Turnoffthescreen25
ClockFaces,Tiles,andApps26
Changetheclockface26
Rearrangetiles27
Manageapps27
Openapps27
Removeapps27
Reinstallapps28
Updateapps28
Adjustappsettingsandpermissions28
VoiceAssistant29
SetupAmazonAlexaBuilt-in29
Interactwithyourvoiceassistant29
CheckAlexaalarms,reminders,andtimers31
Lifestyle32
Weather32
FindPhone33
Notificationsfromyourphone34
Setupnotifications34
Seeincomingnotifications34
Managenotifications35
Turnoffnotifications35
Answerorrejectphonecalls36
Respondtomessages(Androidphones)37
Timekeeping38
Setanalarm38
Dismissorsnoozeanalarm38
Usethetimerorstopwatch39
Timeeventswiththestopwatch39
Keeptrackofelapsedtimewiththecountdowntimer39
3
Seeyourstats41
Trackadailyactivitygoal43
Chooseagoal43
Trackyourhourlyactivity43
Trackyoursleep44
Setasleepgoal44
Getinsightsintoyourlong-termsleepbehaviors44
Learnaboutyoursleephabits45
Trackyourskintemperaturechanges45
Managestress47
UsetheEDAScanapp48
Practiceguidedbreathing48
Checkyourstressmanagementscore49
Trackyourbodyresponses50
Advancedhealthmetrics51
ExerciseandHeartHealth52
Trackyourexerciseautomatically52
TrackandanalyzeexercisewiththeExerciseapp53
Customizeyourexercisesettings54
Checkyourworkoutsummary55
Checkyourheartrate55
Customheart-ratezones57
EarnActiveZoneMinutes57
Receiveheart-ratenotifications57
Checkyourdailyreadinessscore58
Viewyourcardiofitnessscore59
Shareyouractivity59
FitbitPay60
Usecreditanddebitcards60
SetupFitbitPay60
Makepurchases61
Changeyourdefaultcard62
Payfortransit62
4
Update,Restart,andErase63
UpdateSense263
RestartSense263
ShutdownSense264
EraseSense264
Troubleshooting65
Heart-ratesignalmissing65
GPSsignalmissing65
Otherissues66
GeneralInfoandSpecifications67
SensorsandComponents67
Materials67
Wirelesstechnology68
Hapticfeedback68
Battery68
Memory68
Display68
Bandsize68
Environmentalconditions69
Learnmore69
Returnpolicyandwarranty69
RegulatoryandSafetyNotices70
USA:FederalCommunicationsCommission(FCC)statement70
Canada:IndustryCanada(IC)statement71
EuropeanUnion(EU)72
Argentina74
AustraliaandNewZealand74
Ghana74
Indonesia74
Israel75
Japan75
KingdomofSaudiArabia75
Malaysia75
5
Mexico76
Morocco76
Nigeria76
Oman77
Paraguay77
Philippines77
Serbia77
Singapore78
SouthKorea78
Taiwan78
Thailand82
UnitedArabEmirates82
UnitedKingdom82
Vietnam83
AbouttheBattery83
IPRating84
SafetyStatement84
RegulatoryMarkings84
6

Getstarted

MeetFitbitSense2byGoogle—thesmartwatchdesignedtohelpyoustressless,
sleepbetter,andlivehealthier.
Takeamomenttoreviewourcompletesafetyinformationatfitbit.com/safety.
Sense2isnotintendedtoprovidemedicalorscientificdata.

What'sinthebox

YourSense2boxincludes:
Watchwithsmallband
(colorandmaterialvaries)
ThedetachablebandsonSense2comeinavarietyofcolorsandmaterials,sold
separately.
ChargingcableAdditionallargeband
7

Chargeyourwatch

Afully-chargedSense2hasabatterylifeof6+days.Batterylifeandchargecycles
varywithuseandotherfactors;actualresultswillvary.
TochargeSense2:
1. PlugthechargingcableintotheUSBportonyourcomputer,aUL-certified
USBwallcharger,oranotherlow-energychargingdevice.
2. Holdtheotherendofthechargingcableneartheportonthebackofthe
watchuntilitattachesmagnetically.Makesurethepinsonthechargingcable
alignwiththeportonthebackofyourwatch.
ChargeSense2for12minutesfor24hoursofbatterylife.Whilethewatchcharges,
tapthescreentwiceorpressthebuttontoturnthescreenon.Chargingfullytakes
about1-2hours.
8

SetupSense2

SetupSense2withtheFitbitappforiPhonesandiPadsorAndroidphones.The
Fitbitappiscompatiblewithmostpopularphones.Seefitbit.com/devicestocheck
ifyourphoneiscompatible.
Togetstarted:
1. DownloadtheFitbitapp:
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AppleAppStoreforiPhones
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GooglePlayStoreforAndroidphones
2. Installtheapp,andopenit.
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IfyoualreadyhaveaFitbitaccount,logintoyouraccount
tapthe
TodaytabyourprofilepictureSetUpaDevice.
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Ifyoudon'thaveaFitbitaccount,tap
JoinFitbittobeguidedthrougha
seriesofquestionstocreateaFitbitaccount.
3. Continuetofollowtheon-screeninstructionstoconnectSense2toyour
account.
Whenyou'redonewithsetup,readthroughtheguidetolearnmoreaboutyournew
watchandthenexploretheFitbitapp.
Formoreinformation,seetherelatedhelparticle.
9

SeeyourdataintheFitbitapp

OpentheFitbitapponyourphonetoviewyouractivity,healthmetrics,andsleep
data;logfoodandwater;participateinchallenges;andmore.
10

UnlockFitbitPremium

FitbitPremiumisyourpersonalizedresourceintheFitbitappthathelpsyoustay
active,sleepwell,andmanagestress.APremiumsubscriptionincludesprograms
tailoredtoyourhealthandfitnessgoals,personalizedinsights,hundredsof
workoutsfromfitnessbrands,guidedmeditations,andmore.
NewFitbitPremiumcustomerscanredeematrialsubscriptionintheFitbitapp.
Formoreinformation,seetherelatedhelparticle.
11

WearSense2

WearSense2aroundyourwrist.Ifyouneedtoattachadifferentsizeband,orifyou
purchasedanotherband,seetheinstructionsin"Changetheband"onpage15.

Placementforall-daywearvs.exercise

Whenyou'renotexercising,wearSense2afinger'swidthaboveyourwristbone.
Ingeneral,it'salwaysimportanttogiveyourwristabreakonaregularbasisby
removingyourwatchforaroundanhourafterextendedwear.Werecommend
removingyourwatchwhileyoushower.Althoughyoucanshowerwhilewearing
yourwatch,notdoingsoreducesthepotentialforexposuretosoaps,shampoos,
andconditioners,whichcancauselong-termdamagetoyourwatchandmaycause
skinirritation.
Foroptimizedheart-ratetrackingwhileexercising:
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Duringworkouts,trymovingthebandhigheronyourwristtogetabetterfit.
Ifyouexperienceanydiscomfort,loosentheband,andifitpersistsgiveyour
wristabreakbytakingitoff.
12
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Wearyourwatchontopofyourwrist,andmakesurethebackofthedeviceis
incontactwithyourskin.

Fastentheband

1. PlaceSense2aroundyourwrist.
2. Slidethebottombandthroughthefirstloopinthetopband.
3. Tightenthebanduntilitfitscomfortably,andpressthepegthroughoneof
theholesintheband.Ifyouuseoneofthelasttwoholesinthesmallerband,
werecommendswappingtothelargerbandforamoresecurefit.For
13
instructions,see"Changetheband"onthefacingpage.
4. Slidethelooseendofthebandthroughthesecondloopuntilitliesflaton
yourwrist.Makesurethebandisn’ttootight.Wearthebandlooselyenough
thatitcanmovebackandforthonyourwrist.

Handedness

Forgreateraccuracy,youmustspecifywhetheryouwearSense2onyour
dominantornon-dominanthand.Yourdominanthandistheoneyouuseforwriting
andeating.Tostart,theWristsettingissettonon-dominant.IfyouwearSense2on
yourdominanthand,changetheWristsettingintheFitbitapp:
FromtheTodaytab
WristDominant.
intheFitbitapp,tapyourprofilepictureSense2tile
14

Wearandcaretips

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Cleanyourbandandwristregularlywithasoap-freecleanser.
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Ifyourwatchgetswet,removeanddryitcompletelyafteryouractivity.
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Takeyourwatchofffromtimetotime.
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Ifyounoticeskinirritation,removeyourwatchandcontactcustomersupport.
Formoreinformation,seefitbit.com/productcare.
Formoreinformation,visittheFitbitWear&Carepage.

Changetheband

Sense2comeswithasmallbandattachedandanadditionallarge,bottombandin
thebox.Boththetopandbottombandscanbeswappedwithaccessorybands,
soldseparatelyonfitbit.com.Forbandmeasurements,see"Bandsize"onpage68.
FitbitSense,FitbitVersa3,andFitbitVersa4bandsarecompatiblewithSense2.

Removeaband

1. TurnoverSense2andfindthebandlatches.
2. Toreleasethelatch,slidetheflatbuttontowardtheband.
15
3. Gentlypullthebandawayfromthewatchtoreleaseit.
4. Repeatontheotherside.

Attachaband

Toattachaband,pressitintotheendofthewatchuntilyouhearaclickandit
snapsintoplace.Thebandwiththeloopsandpegattachestothetopofthewatch.
16

Basics

Learnhowtomanagesettings,setapersonalPINcode,navigatethescreen,and
checkthebatterylevel.

NavigateSense2

Sense2hasacolorAMOLEDtouchscreendisplayand1button.
NavigateSense2bytappingthescreen,swipingsidetosideandupanddown,or
pressingthebutton.Topreservebattery,thewatch’sscreenturnsoffwhennotin
use,unlessyouturnonthealways-ondisplaysetting.Formoreinformation,see
"Adjustalways-ondisplay"onpage24.

Basicnavigation

Thehomescreenistheclock.
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Swipedowntoseequicksettings
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Swipeuptoseeyournotifications.
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Swipeleftorrighttoseeyourtiles.
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Pressthebuttontoopentheappsmenuorreturntotheclockface.
17

Buttonshortcuts

UsethebuttontoquicklyaccessFitbitPay,voiceassistant,quicksettings,oryour
favoriteapps.
18
Pressthebutton
Pressthebuttontoreturntotheclockface.Fromtheclockface,pressthebuttonto
openalistoftheappsinstalledonyourwatch.
Pressandholdthebutton
Holdthebuttonfor1secondtoactivateafeatureofyourchoice.Thefirsttimeyou
usethebuttonshortcut,selectwhichfeatureitactivates.Tochangewhichfeature
activateswhenyouholdthebutton,opentheSettingsapp
tapShortcut.Checkthatthelongpressshortcutisturnedon,andthentap
Longpresstoselecttheappyouwant.
Double-pressthebutton
Double-pressthebuttontoopenshortcutstoyourvoiceassistant,quicksettings,
notifications,andcontactlesspayment.Tapashortcuttoopenit.
onyourwatchand

Quicksettings

Fromtheclockface,swipedowntoaccessthequicksettings.
19
DoNotDisturb
Whenthedonotdisturbsettingison:
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Notifications,goalcelebrations,andreminders
aremuted.
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Thedonotdisturbiconilluminates
inquick
settings.
Youcan'tturnonthedonotdisturbsettingandsleep
modeatthesametime.
SleepMode
Settings
Whenthesleepmodesettingison:
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Notifications,goalcelebrations,andreminders
aremuted.
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Thescreen'sbrightnessissettodim.
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TheAlways-OnDisplayclockfaceisturnedoff.
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Thescreenstaysdarkwhenyouturnyourwrist.
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Thesleepmodeiconilluminates
inquick
settings.
Sleepmodeturnsoffautomaticallywhenyouseta
sleepschedule.Formoreinformation,see
"Adjust
settings"onthefacingpage.
Youcan'tturnonthedonotdisturbsettingandsleep
modeatthesametime.
Foradditionalsettings,taptheSettingsicontoopen
theSettingsapp.Formoreinformation,see"Adjust
settings"onthefacingpage.
ScreenWake
Brightness
WhenyousetscreenwaketoButton&motion,the
screenturnsoneachtimeyouturnyourwrist,pressthe
button,ortapthescreen.
WhenyousetscreenwaketoButtononly,pressthe
buttonortapthescreentoturnonthedisplay.
Adjustthescreenbrightness.
20
Always-OnDisplay
Turnalways-ondisplayonoroff.Formoreinformation,
see"Adjustalways-ondisplay"onpage24.

Tiles

Fromtheclockface,swiperightorlefttonavigatethroughyourtiles.Viewyour
progresstowardyourdailygoal,seeasummaryoftoday’sactivity,checkyour
heartratethroughouttheday,viewyourlatestsleepmetrics,seethebody
responsesyourwatchdetected,setatimer,startanexercise,orchecktheweather
forecast.
Customizeyourwatchbychangingwhichtilesareincludedandtheorderthey’re
shownin.Formoreinformation,see"Rearrangetiles"onpage27.

Adjustsettings

ManagebasicsettingsintheSettingsapp:

Display

BrightnessChangethescreen'sbrightness.
Screen
wake
Screen
timeout
Always-on
display
Changewhetherthescreenturnsonwhenyouturnyourwrist.
Adjusttheamountoftimebeforethescreenturnsofforswitchesto
thealways-ondisplayclockface.
Turnalways-ondisplayonoroff.Formoreinformation,see"Adjust
always-ondisplay"onpage24.
Vibration&audio
VibrationAdjustyourwatch'svibrationstrength.
MicrophoneChoosewhetheryourwatchcanaccessthemicrophone.
21

Notifications

Unread
indicator
Chooseifyouwanttoseeaniconatthebottomoftheclockface
whenyouhaveunreadnotifications.

Goalreminders

ActiveZoneMinutes
goal

Quietmodes

Focusmode
Donot
disturb
Sleepmode
TurnoffnotificationswhileusingtheExerciseapp.
Turnoffallnotifications.
Adjustsleepmodesettings,includingsettingascheduleforthe
modetoautomaticallyturnonandoff.
Tosetaschedule:
TurnActiveZoneMinutesweeklygoalnotificationsonor
off.
Alexa
notifications

Shortcut

Buttonlong
press
1. IntheSleepModesection,tap
2. Tapthestartorendtimetoadjustwhenthemodeturnson
andoff.Swipeupordowntochangethetime,andtapthe
timetoselectit.Sleepmodeautomaticallyturnsoffatthe
timeyouschedule,evenifyoumanuallyturnediton.
TurnAmazonAlexanotificationsoff.
Choosetheapporfeatureyouwanttoopenwhenyoupressand
holdthebutton.
Schedulemode.
22

Voiceassistant

VoiceassistantTurnyourvoiceassistantonoroff.
Audio
Feedback
Choosewhetheryourvoiceassistantusesthespeakerinyour
watch.

AboutSense2

SysteminfoSeetheversionnumberofyourwatch'sinstalledfirmware.
Regulatory
Seeyourwatch'sregulatoryinformation.
info
FactoryresetErasealldeviceinfo.Formoreinformation,see"EraseSense2"on
page64.
Tapasettingtoadjustit.Swipeuptoseethefulllistofsettings.

Checkbatterylevel

Fromtheclockface,swipedown.Thebatterylevelisatthebottomofthescreen.
Whenthebatteryiscriticallylow(8%orlower):
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Thescreenbrightnessissettodim
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Thevibrationstrengthissettolight
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Ifyou’retrackinganexercisewithGPS,GPStrackingturnsoff
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TheEDAsensorturnsoff
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Always-ondisplayisturnedoff
23
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Youcan'tusethevoiceassistantfeature
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Youcan'tusequickreplies
ChargeSense2touseoradjustthesefeatures.

Setupdevicelock

Tohelpkeepyourwatchsecure,turnondevicelockintheFitbitapp,which
promptsyoutoenterapersonal4-digitPINcodetounlockyourwatch.Ifyouset
upFitbitPaytomakecontactlesspaymentsfromyourwatch,devicelockisturned
onautomaticallyandyou'rerequiredtosetacode.Ifyoudon'tuseFitbitPay,
devicelockisoptional.
TurnondevicelockorresetyourPINcodeintheFitbitapp:
FromtheTodaytab
DeviceLock.
Formoreinformation,see
intheFitbitapp,tapyourprofilepictureSense2tile
therelatedhelparticle.

Adjustalways-ondisplay

Turnonalways-ondisplaytoshowthetimeonyourwatch,evenwhenyou'renot
interactingwiththescreen.Manyclockfacesandcertainappshaveanalways-on
displaymode.
24
Toturnalways-ondisplayonoroff,swipedownfromtheclockfacetoopenquick
settings.Tapthealways-ondisplayicon
Notethatturningonthisfeatureimpactsyourwatch'sbatterylife.Whenalways-on
displayisturnedon,Sense2requiresmorefrequentcharging.
Always-ondisplayautomaticallyturnsoffwhenyourwatch'sbatteryiscritically
low.
Formoreinformation,seetherelatedhelparticle.
.

Turnoffthescreen

Toturnoffyourwatch'sscreenwhennotinuse,turnyourwristawayfromyour
body.IfyourscreenwakesettingissettoButtononly,thescreenturnsoffwhen
youstopinteractingwiththewatch.Toadjustthescreentimeoutsetting,openthe
Settingsapp
Notethatifyouturnonthealways-ondisplaysetting,thescreenwon'tturnoff.
DisplayScreentimeout.
25

ClockFaces,Tiles,andApps

TheFitbitGalleryoffersappsandclockfacestopersonalizeyourwatchandmeeta
varietyofhealth,fitness,timekeeping,andeverydayneeds.

Changetheclockface

TheFitbitGalleryoffersavarietyofclockfacestopersonalizeyourwatch.
1.
FromtheTodaytab
intheFitbitapp,tapyourprofilepictureSense2
tile.
2.
Tap
GalleryClockstab.
3. Browsetheavailableclockfaces.Tapaclockfacetoseeadetailedview.
4. Tap
InstalltoaddtheclockfacetoSense2.
Saveupto5clockfacestoswitchbetweenthem:
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Whenyouselectanewclockface,it’sautomaticallysavedunlessyoualready
have5savedclockfaces.
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ToseeyoursavedclockfacesintheFitbitapp,taptheTodaytab
profilepictureyourdeviceimageGallery.Seeyoursavedclockfaces
inMyClockFaces.
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Toremoveaclockface,taptheclockface
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Toswitchtoasavedclockface,taptheclockface
Removeclockface.
Select.
your
26

Rearrangetiles

Fromtheclockface,swiperightorlefttonavigatethroughyourtiles.Tomanage
whichtilesareincludedandtheorderthey’reshownin:
1.
FromtheTodaytab
deviceimageGallery.
2. IntheMyTilessectionoftheSense2tab,tap
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Torearrangethetiles,tapandholdthegridicon.Movethetileupor
downinthelist,thenreleaseittoplaceitinanewposition.
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Todeleteatile,presstheXicon
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Toaddatile,tap
intheFitbitapp,tapyourprofilepictureyour
Manage.
Remove.
AddtiletapthetileyouwanttoaddInstall.

Manageapps

Customizeyourwatchwithyourfavoriteapps.

Openapps

Fromtheclockface,pressthebuttontoseetheappsinstalledonyourwatch.Your
mostrecentlyusedappsappearatthetop.Swipeuptobrowseyourapps.Toopen
anapp,tapit.

Removeapps

YoucanremovemostappsinstalledonSense2:
1.
FromtheTodaytab
tile.
2. Tap
3. Taptheappyouwanttoremove.Youmightneedtoswipeuptofindit.
4. TapUninstall.
Gallery.
intheFitbitapp,tapyourprofilepictureSense2
27

Reinstallapps

1.
FromtheTodaytab
tile.
2.
Tap
GalleryAppstab.
3. Browsetheavailableapps.Whenyoufindoneyouwanttoinstall,tapit.
4. Tap
Formoreinformation,seetherelatedhelparticle.
InstalltoaddtheapptoSense2.
intheFitbitapp,tapyourprofilepictureSense2

Updateapps

Occasionally,youneedtoupdateappsinstalledonSense2.
Toupdateanapp:
1.
FromtheTodaytab
tile.
2. Tap
3. TaptheUpdatebuttonnexttotheapp.
Gallery.Findtheappyouwanttoupdate.Youmightneedtoswipeupto
findit.
intheFitbitapp,tapyourprofilepictureSense2

Adjustappsettingsandpermissions

Manyappsincludeoptionstoadjustthenotifications,allowcertainpermissions,and
customizewhatitdisplays.Notethatturningoffanyapppermissionsmightcause
theapptostopfunctioning.
Toaccessthesesettings:
1.
Withyourwatchnearby,intheFitbitapp,taptheTodaytab
profilepictureyourdeviceimage.
2. Tap
3. Taptheapporclockfacewhosesettingsyouwanttochange.Youmightneed
4. TapSettingsorPermissions.
5. Tapthebackarrowwhenyou'redonemakingchanges.
Gallery.
toswipeuptoseesomeapps.
your
28

VoiceAssistant

Checktheweather,settimersandalarms,controlyoursmarthomedevices,and
morebyspeakingtoyourwatch.

SetupAmazonAlexaBuilt-in

1.
FromtheTodaytab
tile.
2.
Tap
AmazonAlexaSigninwithAmazon.
3. Tap
4. LogintoyourAmazonaccountorcreateoneifnecessary.
5. Followtheon-screeninstructionsandreadaboutwhatAlexacando,andtap
TochangethelanguageAlexarecognizes:
1.
2. Tap
3. Tapthecurrentlanguagetochangeit,ortapLogouttostopusingAlexaon
GetStarted.
ClosetoreturntoyourdevicesettingsintheFitbitapp.
FromtheTodaytab
tile.
AmazonAlexa.
yourwatch.
intheFitbitapp,tapyourprofilepictureSense2
intheFitbitapp,tapyourprofilepictureSense2

Interactwithyourvoiceassistant

1.
OpentheAlexaapp
runninginthebackgroundonyourphone.
2. Sayyourrequest.
onyourwatch.NotethattheFitbitappmustbe
29
Youdon'tneedtosay"Alexa"beforespeakingyourrequest.Forexample:
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Setatimerfor10minutes.
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Setanalarmfor8:00a.m.
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What'sthetemperatureoutside?
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Remindmetomakedinnerat6:00p.m.
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Howmuchproteinisinanegg?
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AskFitbittostartarun.*
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StartabikeridewithFitbit.*
*ToaskAlexatoopentheExerciseapponyourwatch,youmustfirstsetupthe
FitbitskillforAlexa.Formoreinformation,seetherelatedhelparticle.These
commandsarecurrentlyavailableinEnglish,German,French,Italian,Spanish,and
Japanese.
AmazonAlexaisn'tavailableinallcountries.Formoreinformation,see
fitbit.com/voice.
Notethatsaying“Alexa”doesn’tactivatethevoiceassistantonyourwatch—you
mustopenthevoiceassistantapponyourwatchbeforethemicrophoneturnson.
Themicrophoneturnsoffwhenyoucloseyourvoiceassistant,orwhenyour
watch’sscreenturnsoff.
Foraddedfunctionality,installtheAmazonAlexaapponyourphone.Withtheapp,
yourwatchcanaccessadditionalAlexaskills.
Formoreinformation,seetherelatedhelparticle.
30

CheckAlexaalarms,reminders,andtimers

1.
OpentheAlexaapp
2.
Tapthealertsicon
timers.
3. Tapanalarmtoturnitonoroff.Toadjustorcancelareminderortimer,tap
theAlexaiconandsayyourrequest.
NotethatAlexa'salarmsandtimersareseparatefromthoseyousetintheAlarms
apporTimersapp.
onyourwatch.
andswipeuptoviewyouralarms,reminders,and
31

Lifestyle

Useappstostayconnectedtowhatyoucareaboutmost.See"ClockFaces,Tiles,
andApps"onpage26forinstructionsonhowtoaddanddeleteapps.
Formoreinformation,seetherelatedhelparticle.

Weather

Seetheweatherinyourcurrentlocation,aswellas2additionallocationsyou
choose,intheWeatherapponyourwatch.
Checktheweatherforecastinyourcurrentlocationinyourtiles.Fromtheclock
face,swipeleftorrightuntilyoureachtheWeathertile.Tapthepanelatthebottom
ofthescreentocyclebetweenthecurrentcloudcover,upcomingtemperature
forecast,chanceofrain,andairquality.Tapanywhereelseonthetiletoopenthe
Weatherapp
2additionallocationsyouchoose.
Iftheweatherforyourcurrentlocationdoesn'tappear,checkthatyouturnedon
locationservicesfortheFitbitapp.Ifyouchangelocationsordon'tseeupdated
dataforyourcurrentlocation,syncyourwatchtoseeyournewlocationandlatest
dataintheWeatherapportile.
ChooseyourunitoftemperatureintheFitbitapp.Formoreinformation,see
relatedhelparticle.
,whereyoucanseemoredetails,aswellastheweatherforecastin
the
32
Toaddorremoveacity:
1.
FromtheTodaytab
intheFitbitapp,tapyourprofilepictureSense2
tile.
2. Tap
Gallery.
3. TaptheWeatherapp.Youmightneedtoswipeuptofindit.
4.
SettingsAddcitytoaddupto2additionallocationsortapEditthe
Tap
Xicontodeletealocation.Notethatyoucan'tdeleteyourcurrentlocation.

FindPhone

UsetheFindPhoneapptolocateyourphone.
Requirements:
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Yourwatchmustbeconnected(“paired”)tothephoneyouwanttolocate.
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YourphonemusthaveBluetoothturnedonandbewithin30feet(10m)of
yourFitbitdevice.
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TheFitbitappmustberunninginthebackgroundonyourphone.
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Yourphonemustbeturnedon.
Tofindyourphone:
1. OpentheFindPhoneapponyourwatch.
2. Tap
FindPhone.Yourphoneringsloudly.
3. Whenyoulocateyourphone,tapCanceltoendtheringtone.
33

Notificationsfromyourphone

Sense2canshowcall,text,calendar,andappnotificationsfromyourphonetokeep
youinformed.Keepyourwatchwithin30feetofyourphonetoreceive
notifications.

Setupnotifications

CheckthatBluetoothonyourphoneisonandthatyourphonecanreceive
notifications(oftenunderSettings
1.
FromtheTodaytab
tile.
2. Tap
3. Followtheon-screeninstructionstopairyourwatchifyouhaven'talready.
4. Toturnonnotificationsfromappsinstalledonyourphone,includingFitbitand
Notifications.
Call,text,andcalendarnotificationsareturnedonautomatically.
WhatsApp,tapAppNotificationsandturnonthenotificationsyouwantto
see.
intheFitbitapp,tapyourprofilepictureSense2
Notifications).Thensetupnotifications:
NotethatifyouhaveaniPhone,Sense2showsnotificationsfromallcalendars
syncedtotheCalendarapp.IfyouhaveanAndroidphone,Sense2showscalendar
notificationsfromthecalendarappyouchoseduringsetup.
Formoreinformation,seetherelatedhelparticle.

Seeincomingnotifications

Anotificationcausesyourwatchtovibrate.Ifyoudon'treadthenotificationwhenit
arrives,youcancheckitlaterbyswipingupontheclockfaceorbydouble-pressing
thebuttonandtappingthenotificationsicon.
34

Managenotifications

Sense2storesupto30notifications,afterwhichtheoldestarereplacedasyou
receivenewones.
Tomanagenotifications:
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Fromtheclockface,swipeuptoseeyournotificationsandtapany
notificationtoexpandit.
l
Todeleteanotification,taptoexpandit,thenswipetothebottomandtap
Clear.
l
Todeleteallnotificationsatonce,swipeupuntilyoureachtheendofyour
notificationsandtapClearAll.
l
Toexitthenotificationsscreen,pressthebuttonorswipedown.

Turnoffnotifications

TurnoffcertainnotificationsintheFitbitapp,orturnoffallnotificationsinquick
settingsonSense2.Whenyouturnoffallnotifications,yourwatchwon'tvibrate
andthescreenwon'tturnonwhenyourphonereceivesanotification.
Toturnoffcertainnotifications:
1.
FromtheTodaytab
intheFitbitapponyourphone,tapyourprofile
pictureSense2tileNotifications.
2. Turnoffthenotificationsyounolongerwanttoreceiveonyourwatch.
Toturnoffallnotifications:
35
1. Fromtheclockface,swipedowntoaccessquicksettings.
2.
Tapthedonotdisturbicon
andreminders,areturnedoff.
Notethatifyouusethedonotdisturbsettingonyourphone,youdon'treceive
notificationsonyourwatchuntilyouturnoffthissetting.
.Allnotifications,includinggoalcelebrations

Answerorrejectphonecalls

IfpairedtoaniPhoneorAndroidphone,Sense2letsyouacceptorrejectincoming
phonecalls.
Toacceptacall,tapthegreenphoneicononyourwatch'sscreen.Torejectacall,
taptheredphoneicontosendthecallertovoicemail.
Thecaller'snameappearsifthatpersonisinyourcontactslist;otherwiseyouseea
phonenumber.
36

Respondtomessages(Androidphones)

Responddirectlytotextmessagesandnotificationsfromcertainappsonyour
watchwithpresetquickrepliesorbyspeakingyourreplyintoSense2.Keepyour
phonenearbywiththeFitbitapprunninginthebackgroundtorespondto
messagesfromyourwatch.
Torespondtoamessage:
1. Openthenotificationyouwanttorespondto.
2. Choosehowtoreplytothemessage:
l
Tapthemicrophoneicon
text.Tochangethelanguagerecognizedbythemicrophone,tap
Language.Afteryouspeakyourreply,tapSend,ortapRetrytotry
again.
l
Tapthetexticon
l
Taptheemojiicon
torespondtoamessagefromalistofquickreplies.
torespondtothemessagewithanemoji.
torespondtothemessageusingvoice-to-
Formoreinformation,includinghowtocustomizequickreplies,see
article.
therelatedhelp
37

Timekeeping

Alarmsvibratetowakeoralertyouatatimeyouset.Setupto8alarmstooccur
onceoronmultipledaysoftheweek.Youcanalsotimeeventswiththestopwatch
orsetacountdowntimer.
Notethatalarmsandtimersyousetwithavoiceassistantareseparatefromthe
onesyousetintheAlarmsappandTimersapp.Formoreinformation,see"Voice
Assistant"onpage29.

Setanalarm

Setone-timeorrecurringalarmswiththeAlarmsapp.Whenanalarmgoesoff,
yourwatchvibrates.
Whensettinganalarm,turnonSmartWaketoallowyourwatchtofindthebest
timetowakeyoustarting30minutesbeforethealarmtimeyouset.Itavoids
wakingyouduringdeepsleepsoyou'remorelikelytowakeupfeelingrefreshed.If
SmartWakecan’tfindthebesttimetowakeyou,youralarmalertsyouattheset
time.
Formoreinformation,see
therelatedhelparticle.

Dismissorsnoozeanalarm

Whenanalarmgoesoff,yourwatchvibrates.Todismissthealarm,tapthealarm
icon
Snoozethealarmasmanytimesasyouwant.Sense2automaticallygoesinto
snoozemodeifyouignorethealarmformorethan1minute.
.Tosnoozethealarmfor9minutes,tapthesnoozeicon.
38

Usethetimerorstopwatch

Timeeventswiththestopwatchorsetacountdowntimeronyourwatch.Youcan
runthestopwatchandcountdowntimeratthesametime.
Ifalways-ondisplayison,thescreencontinuestodisplaythestopwatchor
countdowntimeruntilitendsoryouexittheapp.

Timeeventswiththestopwatch

1.
Onyourwatch,opentheTimersapp
2. IntheStopwatchsection,tap
3.
Taptheplayicon
4.
Tapthepauseicon
5.
Tapthereseticon
tostartthestopwatch.
tostop.
toresetthestopwatch.
Start.
.

Keeptrackofelapsedtimewiththecountdowntimer

1. Onyourwatch,swipeleftorrightfromtheclockfacetofindtheTimerstile.
2. Tapatimertostartit.
1.
Ifthedurationyouwantisn’tlisted,tapthemenuicon
2. Swipeupordowntosetthetimer.
3. Tapthetimetostartthetimer.
3. Youcannavigateawayfromthetilewhilethetimerisrunning.Returntothe
Timerstiletoseetheprogressofyourtimer.Pressthepauseicontopause
AddTimer.
39
thetimerortheXicontocancelit.Yourdeviceflashesandvibrateswhenthe
timeallottedisdone.
4. Tapthecheckmarkiconorpressthebuttontostopthealert.
Formoreinformation,seetherelatedhelparticle.
40

ActivityandWellness

Sense2continuouslytracksavarietyofstatswheneveryouwearit,includinghourly
activity,heartrate,andsleep.DataautomaticallysyncswiththeFitbitapp
throughouttheday.

Seeyourstats

SwipeleftorrightfromtheclockfacetofindToday'sActivitytile,whichshowsyour
dailyActiveZoneMinutes,steps,calories,distancetraveled,andfloorsclimbed.For
detailsandadditionalstats,tapthetiletoopentheTodayapp
,whichincludes:
41
ActiveZone
Minutes
CaloriesburnedCaloriesburnedtodayandprogresstowardyourdailygoal
DistanceDistancecoveredtodayandprogresstowardyourdailygoal
ExerciseNumberofdaysyoumetyourexercisegoalthisweek
FloorsFloorsclimbedtodayandprogresstowardyourdailygoal
HeartrateCurrentheartrateandheart-ratezone
HourlyactivityThenumberofhourstodayyoumetyourhourlyactivitygoal
MenstrualhealthInformationonthecurrentstageofyourmenstrualcycle,if
MindfulnessThenumberofmindfulnesssessionsyoucompletedthisweek
ActiveZoneMinutesearnedtodayandthenumberofActive
ZoneMinutesyou'recurrentlyearningperminute
applicable
andprogresstowardyourgoal
Oxygen
Saturation
ReadinessYourdailyreadinessscore
Restingheart
rate
SleepSleepdurationandsleepscore
StepsStepstakentodayandprogresstowardyourdailygoal
Stress
management
score
Toreorderthestats,pressandholdarow,thendragitupordowntochangeits
position.Swipeastattothelefttohideit.TapAddstatsatthebottomofthescreen
toaddbackanystatsyouhid.
Findyourcompletehistoryandotherinformationdetectedbyyourwatchinthe
Fitbitapp.
YourmostrecentrestingSpO2average
Yourrestingheartrate
Yourdailystressmanagementscoreandthemostrecentmood
logyousubmittedtoday
42

Trackadailyactivitygoal

Sense2tracksyourprogresstowardadailyactivitygoalofyourchoice.Whenyou
reachyourgoal,yourwatchvibratesandshowsacelebration.

Chooseagoal

Setagoaltohelpyougetstartedonyourhealthandfitnessjourney.Tobegin,your
goalistotake10,000stepsperday.Choosetochangethenumberofsteps,orpick
adifferentactivitygoaldependingonyourdevice.
Formoreinformation,seetherelatedhelparticle.
TrackprogresstowardyourgoalonSense2.Formoreinformation,see"Seeyour
stats"onpage41.

Trackyourhourlyactivity

Sense2helpsyoustayactivethroughoutthedaybykeepingtrackofwhenyou're
stationaryandremindingyoutomove.
Remindersnudgeyoutowalkatleast250stepseachhour.Youfeelavibrationand
seeareminderonyourscreenat10minutesbeforethehourifyouhaven'twalked
250steps.Whenyoumeetthe250-stepgoalafterreceivingthereminder,youfeel
asecondvibrationandseeacongratulatorymessage.
Formoreinformation,seetherelatedhelparticle.
43

Trackyoursleep

WearSense2tobedtoautomaticallytrackbasicstatsaboutyoursleep,including
yourtimeasleep,sleepstages(timespentinREM,lightsleep,anddeepsleep),and
sleepscore(thequalityofyoursleep).
Sense2alsotracksyourestimatedoxygenvariationthroughoutthenighttohelp
youuncoverpotentialbreathingdisturbances,aswellasyourskintemperatureto
seehowitvariesfromyourpersonalbaselineandSpO2levels,whichestimatethe
amountofoxygeninyourblood.
Toseeyoursleepstats,syncyourwatchwhenyouwakeupandchecktheFitbit
app,orswipeleftorrightfromyourclockfacetofindtheSleeptile.
Formoreinformation,seetherelatedhelparticle.

Setasleepgoal

Tostart,youhaveasleepgoalof8hoursofsleeppernight.Customizethisgoalto
meetyourneeds.
Formoreinformation,seetherelatedhelparticle.

Getinsightsintoyourlong-termsleepbehaviors

WithaPremiumsubscription,understandandtakestepstohelpimproveyour
sleepinghabitswithamonthlysleepprofile.Eachmonth,wearyourFitbitdeviceto
sleepforatleast14daysoutofthemonth.Onthe1stofeachmonth,checkthe
Fitbitapptoreceiveabreakdownofyoursleepwith10monthlymetrics,alongwith
asleepanimalthatreflectslong-termtrendsinyoursleepbehaviors.Seeyoursleep
animalonyourdevicewiththeMySleepAnimalclockface.
Formoreinformation,seetherelatedhelparticle.
44

Learnaboutyoursleephabits

WithaFitbitPremiumsubscription,seemoredetailsaboutyoursleepscoreand
howyoucomparetoyourpeers,whichcanhelpyoubuildabettersleeproutineand
wakeupfeelingrefreshed.
Formoreinformation,seetherelatedhelparticle.

Trackyourskintemperaturechanges

Sense2logsyourskintemperatureeachnighttoshowhowitvariesfromyour
personalbaselinetohelpidentifyanychangesfromyourbaseline.Insightintoyour
night-timeskintemperaturevariationcanhelpyouunderstandchangesinyour
bodyandspottrends.Toviewchangesinyournightlysleepingskintemperature,
opentheFitbitapponyourphone.FromtheTodaytab
tile.
Youseeagraphofyourskintemperaturevariations,alongwithanycore
temperaturereadingsyoumanuallylogged.
,taptheTemperature
45
WithaFitbitPremiumsubscription,seeyourskintemperaturechangesthroughout
thenight.
46
NotethatyoumustwearSense2tosleepfor3nightsbeforeyouseeyourpersonal
skintemperaturebaseline.
Formoreinformation,seetherelatedhelparticle.Pleasenotethatthisfeatureisnot
availableinallmarkets.

Managestress

Trackandmanageyourstresswithmindfulnessfeatures.
47

UsetheEDAScanapp

TheEDAScanapponSense2detectselectrodermalactivitywhichmayindicate
yourbody'sresponsetostress.Becauseyoursweatleveliscontrolledbythe
sympatheticnervoussystem,thesechangescanshowmeaningfultrendsabouthow
yourbodyrespondstostress.Choosebetweena2-minutequickscanoraguided
session.
1.
OpentheEDAScanapp
2. Choose
upto60minutes.
3. IfyouchoseGuidedSession,anotificationappearstoopentheFitbitapp.
Chooseamindfulnesssession,andtapPlayAudio.Note:Premiumsubscribers
canaccessadditionalguidedmeditationsintheFitbitapp.
4. Placeyourhandontopofthescreen.Notethatyourpalmmusttouchall4
sidesofthemetalframe.
5. Remainstillduringthescan.KeepyourhandonSense2foratleast2minutes.
6. Ifyouremoveyourhand,thescanpauses.Toresume,placeyourhandbackon
thescreen.Toendthesession,tapEnd.
7. Sense2buzzesafterthescaniscomplete.TapLogIttoreflectonhowyou
feel,ortapSkip.
8. Swipedowntoseethesummaryofyourscan,includingyournumberofEDA
responses,heartrateatthestartandendofthesession,andreflectionifyou
loggedareflection.
9. Toseemoredetailsaboutyoursession,opentheFitbitapponyourphone.
QuickResetfora2-minutescanorGuidedSessionforascanlasting
.
FromtheTodaytab
Formoreinformation,see
,taptheMindfulnesstileYourJourney.
therelatedhelparticle.

Practiceguidedbreathing

TheRelaxapponSense2providespersonalizedguidedbreathingsessionsto
helpyoufindmomentsofcalmthroughouttheday.Allnotificationsare
automaticallydisabledduringthesession.
48
1.
OpentheRelaxapp
2.
The2-minutesessionisthefirstoption.Tapthegearicon
durationofthesessionorturnofftheoptionalvibration.
3. Taptheplayiconor
instructions.
4. Whenthesessionends,tapLogIttoreflectonhowyoufeel,ortapSkipto
skipthisstep.
5. Viewyoursummary,andtapDonetoclosetheapp.
Aftertheexercise,asummaryappearsthatshowsyouralignment(howcloselyyou
followedthebreathingprompt),yourheartrateatthestartandendofthesession,
andhowmanydaysyoucompletedaguidedbreathingsessionthisweek.
.
tochangethe
Starttobeginthesession.Followtheon-screen
Formoreinformation,seetherelatedhelparticle.

Checkyourstressmanagementscore

Basedonyourheartrate,exercise,andsleepdata,yourstressmanagementscore
helpsyouseeifyourbodyisshowingsignsofstressonadailybasis.Thescore
rangesfrom1to100,whereahighernumbermeansyourbodyisshowingfewer
signsofphysicalstress.Toseeyourdailystressmanagementscore,wearyour
watchtosleep,andopentheFitbitapponyourphonethenextmorning.Fromthe
Todaytab
Loghowyoufeelthroughoutthedaytogetaclearerpictureofhowyourmindand
bodyrespondtostress.WithaFitbitPremiumsubscription,seedetailsaboutyour
scorebreakdown.
,taptheStressManagementtile.
49
Formoreinformation,seetherelatedhelparticle.

Trackyourbodyresponses

Sense2usesacontinuousEDAsensortoidentifypatternsofstress.Whenyour
watchdetectsabodyresponse,youseeanotificationaskingyoutoreflectonyour
emotions.
Toaddyourreflection:
1. TapOpenonthenotification.
2. Taptheemotionthatmostcloselyfitsyourmoodduringthetimespecifiedor
tapSkiptodismissthenotification.
Toseepastbodyresponses:
1. Fromtheclockface,swiperightorleftuntilyoureachtheBodyresponsestile.
Thetotaltimetodayyourwatchdetectedabodyresponseisshownatthe
top.Purplesegmentsrepresentthedurationofthebodyresponse.
2. TapCheckintoexplorewaystomanageyourstress.Findshortcutstothe
EDAScanappandRelaxapp,reflectonyourcurrentmood,startawalkinthe
Exerciseapp,orlearnmoreaboutbodyresponses.
Fordetailsandaweeklysummaryofyourtopmoodsandbodyresponses,check
theStressManagementtile
relatedhelparticle.
intheFitbitapp.Formoreinformation,seethe
50

Advancedhealthmetrics

KnowyourbodybetterwithhealthmetricsintheFitbitapp.Thisfeaturehelpsyou
viewkeymetricstrackedbyyourFitbitdeviceovertimesothatyoucanseetrends
andassesswhat’schanged.
Metricsinclude:
l
Oxygensaturation(SpO2)
l
Skintemperaturevariation
l
Heart-ratevariability
l
Restingheartrate
l
Breathingrate
Note:Thisfeatureisnotintendedtodiagnoseortreatanymedicalconditionand
shouldnotbereliedonforanymedicalpurposes.Itisintendedtoprovide
informationthatcanhelpyoumanageyourwell-being.Ifyouhaveanyconcerns
aboutyourhealth,pleasetalktoahealthcareprovider.Ifyoubelieveyouare
experiencingamedicalemergency,callemergencyservices.
Formoreinformation,seetherelatedhelparticle.
51

ExerciseandHeartHealth

AutomaticallytrackexerciseortrackactivitywiththeExerciseapptoseereal-
timestatsandapost-workoutsummary.
ChecktheFitbitapptoshareyouractivitywithfriendsandfamily,seehowyour
overallfitnesslevelcomparestoyourpeers,andmore.

Trackyourexerciseautomatically

Sense2automaticallyrecognizesandrecordsmanyhigh-movementactivities
whichareatleast15minuteslong.SeebasicstatsaboutyouractivityintheFitbit
apponyourphone.FromtheTodaytab
Choosetoturnonwalk,run,orbikeridedetecttoautomaticallystarttheExercise
appwhenyourwatchrecognizesawalk,run,andbikeride.Toturnthissettingon:
1.
OpentheExerciseapp
2. Tapthewalk,run,orbikerideoption.
3. Swipeupandturnon
yourwatchdetectsthisworkouttype,theExerciseappautomaticallyopens.
Notethatifyouleavethissettingoff,basicstatsaboutyourwalks,runs,andbike
ridesarestillrecordedintheFitbitapp.
Formoreinformation,seetherelatedhelparticle.
.
WalkDetect,RunDetect,orBikeDetect.Thenexttime
,taptheExercisetile.
52

TrackandanalyzeexercisewiththeExerciseapp

TrackspecificexerciseswiththeExerciseapponSense2toseereal-timestats,
includingheart-ratedata,caloriesburned,elapsedtime,andapost-workout
summaryonyourwrist.Forcompleteworkoutstats,andaworkoutintensitymapif
youusedGPS,taptheExercisetileintheFitbitapp.
Totrackanexercise:
1.
OnSense2,opentheExerciseapp
mostrecentlyusedexercisesappearatthetop.Tap
completelistofexercises.YoucanalsoaskAlexatoopentheExerciseappor
starttrackingaworkout.Formoreinformation,see"Interactwithyourvoice
assistant"onpage29.
2. Taptheexercisetochooseit.IftheexerciseusesGPS,youcanwaitforthe
signaltoconnect,orstarttheexerciseandGPSwillconnectwhenasignalis
available.NotethatGPScantakeafewminutestoconnect.
andswipetofindanexercise.Your
Otherexercisestofinda
3.
Taptheplayicon
tobegintheexercise,orswipeuptochooseanexercise
goaloradjustthesettings.Formoreinformationonthesettings,see
"Customizeyourexercisesettings"onthenextpage.
4. Taporswipethelargestattoscrollthroughyourreal-timestats.Topause
yourworkout,pressthebuttonorswipeupandtapthepauseicon
thebuttonagainortaptheresumeicontoresumeyourworkout.
5. Whenyou'redonewithyourworkout,swipeupandtap
End.Yourworkout
summaryappears.
6. TapResumetoresumeyourworkout,Startnewtostartanewworkout,or
Donetoclosethesummaryscreen.
Notes:
l
Ifyousetanexercisegoal,yourwatchalertsyouwhenyou’rehalfwaytoyour
goalandwhenyoureachthegoal.
l
IftheexerciseusesGPS,"GPSconnecting..."appearsatthetopofthescreen.
Whenthescreensays"GPSconnected"andSense2vibrates,GPSis
connected.Duringtheexercise,theGPSicon
rotatesifyourwatchis
.Press
53
searchingforaGPSsignal.AstationaryGPSiconindicatesGPSisconnected.
AredGPSiconindicatesaGPSsignalcouldn'tbefound.
Usingbuilt-inGPSimpactsyourwatch'sbatterylife.WhenGPStrackingisturned
on,Sense2cantrackupto12hoursofcontinuousexercise.

Customizeyourexercisesettings

Customizesettingsforeachexercisetypeonyourwatch.Settingsinclude:
Always-on
Display
Auto-StopAutomaticallypausearun,walk,orbikeridewhenyoustop
GPSTrackyourrouteusingGPS
HeartZone
Notifications
IntervalAdjustthemoveandrestintervalsusedduringintervaltraining
PoolLengthSetthelengthofyourpool
Run
/Walk/Bike
Detect
LapsReceivenotificationswhenyoureachcertainmilestonesduring
ShowStatsChoosewhatstatsyouwanttoseewhentrackinganexercise
Keepthescreenonduringexercise
moving
Receivenotificationswhenyouhittargetheart-ratezonesduring
yourworkout.Formoreinformation,seetherelatedhelparticle
Automaticallyopentheexerciseappwhenyourwatchdetectsa
run,walk,orbikeride.
yourworkout
54
Settingsvarybasedontheexercise.Toadjustthesettingsforeachtypeofexercise:
1.
OnSense2,opentheExerciseapp
2. Taptheexerciseyouwanttoadjust.
3. Swipeupthroughthelistofsettings.
4. Tapasettingtoadjustit.
5.
Whenyou'redone,swipedownuntilyouseetheplayicon
.
.

Checkyourworkoutsummary

Afteryoucompleteaworkout,Sense2showsasummaryofyourstats.
ChecktheExercisetileintheFitbitapptoseeadditionalstatsandaworkout
intensitymapifyouusedGPS.

Checkyourheartrate

Sense2personalizesyourheart-ratezonesusingyourheartratereserve,whichis
thedifferencebetweenyourmaximumheartrateandyourrestingheartrate.To
helpyoutargetthetrainingintensityofyourchoice,checkyourheartrateand
heart-ratezoneonyourwatchduringexercise.Sense2notifiesyouwhenyouenter
aheart-ratezone.
55
Icon Zone Calculation Description
Below
Zone
FatBurn
Zone
Cardio
Zone
Below
40%of
yourheart
rate
reserve
Between
40%and
59%of
yourheart
rate
reserve
Between
60%and
84%of
yourheart
rate
reserve
Belowthefatburnzone,your
heartbeatsataslowerpace.
Inthefatburnzone,you’relikelyin
amoderateactivitysuchasabrisk
walk.Yourheartrateand
breathingmightbeelevated,but
youcanstillcarryona
conversation.
Inthecardiozone,you’relikely
doingavigorousactivitysuchas
runningorspinning.
Peak
Zone
Greater
than85%of
yourheart
rate
reserve
Inthepeakzone,you’relikely
doingashort,intenseactivitythat
improvesperformanceandspeed,
suchassprintingorhigh-intensity
intervaltraining.
56

Customheart-ratezones

Insteadofusingtheseheart-ratezones,youcancreateacustomzoneintheFitbit
apptotargetaspecificheart-raterange.
Formoreinformation,seetherelatedhelparticle.

EarnActiveZoneMinutes

EarnActiveZoneMinutesfortimespentinthefatburn,cardio,orpeakheart-rate
zones.Tohelpyoumaximizeyourtime,youearn2ActiveZoneMinutesforeach
minuteyou’reinthecardioorpeakzones.
1minuteinthefatburnzone=1ActiveZoneMinute
1minuteinthecardioorpeakzones=2ActiveZoneMinutes
Afewmomentsafteryouenteradifferentheart-ratezoneduringyourexercise,
yourwatchbuzzessothatyouknowhowhardyou’reworking.Thenumberoftimes
yourwatchvibratesindicateswhichzoneyou’rein:
1buzz=fatburnzone
2buzzes=cardiozone
3buzzes=peakzone
Tostart,yourweeklygoalissetto150ActiveZoneMinutes.You’llreceive
notificationsasyoureachyourgoal.
Formoreinformation,seetherelatedhelparticle.

Receiveheart-ratenotifications

StayinformedwhenSense2detectsthatyourheartrateisoutsideofyourhighor
lowthresholdswhenyouappeartobeinactiveforatleast10minutes.
57
Toturnthisfeatureofforadjustthethresholds:
1.
FromtheTodaytab
pictureSense2tile.
2. Tap
3. TurnHighheartratenotificationorLowheartratenotificationonoroff,ortap
Viewpastheart-ratenotifications,logpossiblesymptomsandcauses,ordelete
notificationsintheFitbitapp.Formoreinformation,seetherelatedhelparticle.
High&lowheartrate.
Customtoadjustthethreshold.
intheFitbitapponyourphone,tapyourprofile

Checkyourdailyreadinessscore

Understandwhat’sbestforyourbodywiththedailyreadinessscore,availablewith
aFitbitPremiumsubscription.ChecktheFitbitappeachmorningtoseeyourscore,
rangingfrom1to100,basedonyouractivity,sleep,andheart-ratevariability.Ahigh
scoremeansyou’rereadytoexercise,whilealowscoresuggestsyoushouldfocus
onrecovery.
58
Whenyoucheckyourscore,youalsoseeabreakdownofwhatimpactedyour
score,apersonalizedactivitygoalfortheday,andrecommendedworkoutsor
recoverysessions.
Toseeyourdailyreadinessscore,wearyourtrackertosleep,andopentheFitbit
apponyourphonethenextmorning.FromtheTodaytab
tile.
Formoreinformation,seethe
relatedhelparticle.
,taptheReadiness

Viewyourcardiofitnessscore

ViewyouroverallcardiovascularfitnessintheFitbitapp.Seeyourcardiofitness
scoreandcardiofitnesslevel,whichshowshowyoucomparetoyourpeers.
IntheFitbitapp,taptheHeart-ratetileandswipeleftonyourheart-rategraphto
seeyourdetailedcardiofitnessstats.
Formoreinformation,seetherelatedhelparticle.

Shareyouractivity

Afteryoucompleteaworkout,opentheFitbitapptoshareyourstatswithfriends
andfamily.
Formoreinformation,seetherelatedhelparticle.
59

FitbitPay

Sense2includesabuilt-inNFCchip,whichletsyouuseyourcreditanddebitcards
onyourwatch.

Usecreditanddebitcards

SetupFitbitPayintheWalletsectionoftheFitbitapp,anduseyourwatchtomake
purchasesinstoresthatacceptcontactlesspayments.
We’realwaysaddingnewlocationsandcardissuerstoourlistofpartners.Toseeif
yourpaymentcardworkswithFitbitPay,seefitbit.com/fitbit-pay/banks.

SetupFitbitPay

TouseFitbitPay,addatleast1creditordebitcardfromaparticipatingbanktothe
WalletsectionoftheFitbitapp.TheWalletiswhereyouaddandremovepayment
cards,setadefaultcardforyourwatch,editapaymentmethod,andreviewrecent
purchases.
1.
FromtheTodaytab
tile.
2. Tapthe
3. Followtheon-screeninstructionstoaddapaymentcard.Insomecases,your
bankmightrequireadditionalverification.Ifyou'readdingacardforthefirst
time,youmightbepromptedtoseta4-digitPINcodeforyourwatch.Note
thatyoualsoneedpasscodeprotectionenabledforyourphone.
4. Afteryouaddacard,followtheon-screeninstructionstoturnonnotifications
foryourphone(ifyouhaven'talreadydoneso)tocompletethesetup.
Wallettile.
intheFitbitapp,tapyourprofilepictureSense2
60

Makepurchases

MakepurchasesusingFitbitPayatanystorethatacceptscontactlesspayments.To
determineifthestoreacceptsFitbitPay,lookforthesymbolbelowonthepayment
terminal:
AllcustomersexceptthoseinAustralia:
1.
OpentheFitbitPayapp
thisappbydouble-pressingthebuttononyourwatch.
2. Ifprompted,enteryour4-digitwatchPINcode.Yourdefaultcardappearson
thescreen.
3. Topaywithyourdefaultcard,holdyourwristnearthepaymentterminal.To
paywithadifferentcard,swipetofindthecardyouwanttouse,andhold
yourwristnearthepaymentterminal.
onyourwatch.Notethatyoucanquicklyaccess
CustomersinAustralia:
1. IfyouhaveacreditordebitcardfromanAustralianbank,holdyourwatch
nearthepaymentterminaltopay.Ifyourcardisfromabankoutsideof
Australia,orifyouwishtopaywithacardthatisnotyourdefaultcard,
completesteps1-3inthesectionabove.
2. Ifprompted,enteryour4-digitwatchPINcode.
61
3. Ifthepurchaseamountexceeds$100AU,followtheinstructionsonthe
paymentterminal.IfpromptedforaPINcode,enterthePINcodeforyour
card(notyourwatch).
Whenthepaymentsucceeds,yourwatchvibratesandyouseeaconfirmationon
thescreen.
Ifthepaymentterminaldoesn'trecognizeFitbitPay,makesurethewatchfaceis
nearthereaderandthatthecashierknowsyou'reusingacontactlesspayment.
Foraddedsecurity,youmustwearSense2onyourwristtouseFitbitPay.
Formoreinformation,seetherelatedhelparticle.

Changeyourdefaultcard

1.
FromtheTodaytab
tile.
2. Tapthe
3. Findthecardyouwanttosetasthedefaultoption.
4. TapSetasDefaultonSense2.
Wallettile.
intheFitbitapp,tapyourprofilepictureSense2

Payfortransit

UseFitbitPaytotaponandoffattransitreadersthatacceptcontactlesscreditor
debitcardpayments.Topaywithyourwatch,followthestepslistedin"Usecredit
anddebitcards"onpage60.
PaywiththesamecardonyourFitbitwatchwhenyoutapthetransitreaderatthe
startandendofyourtrip.Makesureyourdeviceischargedbeforebeginningyour
trip.
62

Update,Restart,andErase

Sometroubleshootingstepsmayrequireyoutorestartyourwatch,whileerasingit
isusefulifyouwanttogiveSense2toanotherperson.Updateyourwatchto
receivethelatestfirmware.

UpdateSense2

Updateyourwatchtogetthelatestfeatureenhancementsandproductupdates.
Whenanupdateisavailable,anotificationappearsintheFitbitapp.Afteryoustart
theupdate,followtheprogressbarsonSense2andintheFitbitappuntilthe
updateiscomplete.Keepyourwatchandphoneclosetoeachotherduringthe
update.
UpdatingSense2maybedemandingonthebattery.Werecommendpluggingyour
watchintothechargerbeforestartinganupdate.
Formoreinformation,seetherelatedhelparticle.

RestartSense2

Ifyoucan’tsyncSense2oryouhavetroublewithtrackingyourstatsorreceiving
notifications,restartyourwatchfromyourwrist:
Torestartyourwatch,pressandholdthebuttonfor10secondsuntilyouseethe
Fitbitlogoonthescreen,andthenreleasethebutton.
Restartingyourwatchdoesn'tdeleteanydata.
Sense2hassmallholesonthedeviceforthealtimeter,speaker,andmicrophone.
Don’tattempttorestartyourdevicebyinsertinganyitems,suchaspaperclips,into
theseholesasyoucandamageSense2.
63

ShutdownSense2

Toturnoffyourwatch,opentheSettingsappShutdown.
Toturnonyourwatch,pressthebutton.
ForinformationabouthowtostoreSense2longterm,see
therelatedhelparticle.

EraseSense2

IfyouwanttogiveSense2toanotherpersonorwishtoreturnit,firstclearyour
personaldata:
OnSense2,opentheSettingsapp
AboutSense2Factoryreset.
64

Troubleshooting

IfSense2isn'tworkingproperly,seeourtroubleshootingstepsbelow.

Heart-ratesignalmissing

Sense2continuouslytracksyourheartratewhileyou'reexercisingandthroughout
theday.Iftheheart-ratesensoronyourwatchhasdifficultydetectingasignal,
dashedlinesappear.
Ifyourwatchdoesn'tdetectaheart-ratesignal,makesureyou'rewearingyour
watchcorrectly,eitherbymovingithigherorloweronyourwristorbytightening
orlooseningtheband.Sense2shouldbeincontactwithyourskin.Afterholding
yourarmstillandstraightforashorttime,youshouldseeyourheartrateagain.
Formoreinformation,seetherelatedhelparticle.

GPSsignalmissing

Environmentalfactorsincludingtallbuildings,denseforest,steephills,andthick
cloudcovercaninterferewithyourwatch'sabilitytoconnecttoGPSsatellites.If
yourwatchissearchingforaGPSsignalduringanexercise,you’llseetheGPSicon
rotatingatthetopofthescreen.
65
Forbestresults,waitforSense2tofindthesignalbeforeyoustartyourworkout.
IfSense2losestheGPSsignalduringyourworkout,theGPSiconappearsred
Yourwatchwillattempttoreconnect.
Formoreinformation,seetherelatedhelparticle.

Otherissues

Ifyouexperienceanyofthefollowingissues,restartyourwatch:
l
Won'tsync
l
Won'trespondtotaps,swipes,orbuttonpress
l
Won'ttrackstepsorotherdata
l
Won'tshownotifications
.
Forinstructions,see"RestartSense2"onpage63.
66

GeneralInfoandSpecifications

SensorsandComponents
FitbitSense2containsthefollowingsensorsandmotors:
l
Multi-pathopticalheartratetracker
l
Electricalsensortomeasureskinconductance(cEDA)forstressdetection
l
MultipurposeelectricalsensorscompatiblewiththeECGappandEDAScan
app
l
Redandinfraredsensorsforoxygensaturation(SpO2)monitoring
l
Gyroscope
l
Altimeter,whichtracksaltitudechanges
l
3-axisaccelerometer,whichtracksmotionpatterns
l
On-wristskintemperaturesensor
l
Ambientlightsensor
l
NFC
l
Built-inGPSreceiver+GLONASS,whichtracksyourlocationduringaworkout
l
Vibrationmotor
l
Speaker
l
Microphone
l
WiFi(deactivated,cannotbeturnedon)

Materials

ThebandthatcomeswithSense2ismadeofaflexible,durableelastomermaterial
similartothatusedinmanysportswatches.
ThehousingandbuckleonSense2aremadeofaluminum.Whilealuminumcan
containtracesofnickel,whichcancauseanallergicreactioninsomeonewithnickel
sensitivity,theamountofnickelinallFitbitproductsmeetstheEuropeanUnion's
stringentNickelDirective.
67

Wirelesstechnology

Sense2containsaBluetooth5.0radiotransceiverandNFCchip.

Hapticfeedback

Sense2containsavibrationmotorforalarms,goals,notifications,reminders,and
apps.

Battery

Sense2containsarechargeablelithium-polymerbattery.

Memory

Sense2storesyourdata,includingdailystats,sleepinformation,andexercise
history,for7days.SeeyourhistoricaldataintheFitbitapp.

Display

Sense2hasacolorAMOLEDdisplay.

Bandsize

Bandsizesareshownbelow.Notethataccessorybandssoldseparatelymayvary
slightly.
Smallband Fitsawristbetween5.5-7.1inches(140mm-180mm)in
circumference
Large
band
Fitsawristbetween7.1-8.7inches(180mm-220mm)in
circumference
68

Environmentalconditions

Operatingtemperature14°to113°F
(-10°to45°C)
Non-operatingtemperature-4°to14°F
(-20°to-10°C)
113°to140°F
(45°to60°C)
Chargingtemperature32°to95°F
(0°to35°C)
WaterresistanceWaterresistantupto50meters
Maximumoperatingaltitude 28,000feet
(8,534m)

Learnmore

Tolearnmoreaboutyourwatch,howtotrackyourprogressintheFitbitapp,and
howtobuildhealthyhabitswithFitbitPremium,visithelp.fitbit.com.

Returnpolicyandwarranty

Findwarrantyinformationandthefitbit.comreturnpolicyonourwebsite.
69

RegulatoryandSafetyNotices

NoticetotheUser:Regulatorycontentforcertainregionscanalsobeviewedon
yourdevice.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo
USA:FederalCommunicationsCommission(FCC)
statement
ModelFB521:
FCCID:XRAFB521
NoticetotheUser:TheFCCIDcanalsobeviewedonyourdevice.Toviewthe
content:
SettingsAboutSense2Regulatoryinfo
Supplier'sDeclarationofConformity
UniqueIdentifier:FB521
ResponsibleParty–U.S.ContactInformation
199FremontStreet,14thFloor
SanFrancisco,CA
94105
UnitedStates
877-623-4997
FCCComplianceStatement(forproductssubjecttoPart15)
ThisdevicecomplieswithPart15oftheFCCRules.
Operationissubjecttothefollowingtwoconditions:
70
1. Thisdevicemaynotcauseharmfulinterferenceand
2. Thisdevicemustacceptanyinterference,includinginterferencethatmay
causeundesiredoperationofthedevice.
FCCWarning
Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor
compliancecouldvoidtheuser’sauthoritytooperatetheequipment.
Note:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfora
ClassBdigitaldevice,pursuanttopart15oftheFCCRules.Theselimitsare
designedtoprovidereasonableprotectionagainstharmfulinterferenceina
residentialinstallation.Thisequipmentgenerates,usesandcanradiateradio
frequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,
maycauseharmfulinterferencetoradiocommunications.However,thereisno
guaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthis
equipmentdoescauseharmfulinterferencetoradioortelevisionreception,which
canbedeterminedbyturningtheequipmentoffandon,theuserisencouragedto
trytocorrecttheinterferencebyoneormoreofthefollowingmeasures:
l
Reorientorrelocatethereceivingantenna.
l
Increasetheseparationbetweentheequipmentandreceiver.
l
Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhich
thereceiverisconnected.
l
Consultthedealeroranexperiencedradio/TVtechnicianforhelp.
ThisdevicemeetstheFCCandICrequirementsforRFexposureinpublicor
uncontrolledenvironments.
Note:Thisdeviceisintendedonlyforuseasawrist-worndevice
Canada:IndustryCanada(IC)statement
Model/ModèleFB521
IC:8542A-FB521
NoticetotheUser:TheICIDcanalsobeviewedonyourdevice.Toviewthe
content:
71
SettingsAboutSense2Regulatoryinfo
Avisàl'utilisateur:L'IDdel'ICpeutégalementêtreconsultésurvotreappareil.Pour
voirlecontenu:
ParamètresÀproposSense2Informationsréglementaires
ThisdevicemeetstheICrequirementsforRFexposureinpublicoruncontrolled
environments.
CetappareilestconformeauxconditionsdelaICenmatièredeRFdansdes
environnementspublicsouincontrôlée
ICNoticetoUsersEnglish/FrenchinaccordancewithcurrentissueofRSSGEN:
ThisdevicecomplieswithIndustryCanadalicenseexemptRSSstandard(s).
Operationissubjecttothefollowingtwoconditions:
1. thisdevicemaynotcauseinterference,and
2. thisdevicemustacceptanyinterference,includinginterferencethatmay
causeundesiredoperationofthedevice.
CetappareilestconformeavecIndustrieCanadaRSSstandardexemptsdelicence
(s).SonutilisationestsoumiseàLesdeuxconditionssuivantes:
1. cetappareilnepeutpasprovoquerd’interférenceset
2. cetappareildoitaccepterTouteinterférence,ycomprislesinterférencesqui
peuventcauserunmauvaisfonctionnementdudispositif

EuropeanUnion(EU)

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2RegulatoryInfo
FrequencyBandsandPower
72
Datagivenhereisthemaximumradio-frequencypowertransmittedinthe
frequencyband(s)inwhichtheradioequipmentoperates.
Bluetooth2400-2483.5MHz<13dBmEIRP
NFC13.56MHz<42dBuA/mat10m
SimplifiedEUDeclarationofConformity
Hereby,FitbitLLCdeclaresthattheradioequipmenttypeModelFB521isin
compliancewithDirective2014/53/EU.ThefulltextoftheEUdeclarationof
conformityisavailableatthefollowinginternetaddress:www.fitbit.com/safety
VereinfachteEU-Konformitätserklärung
FitbitLLCerklärthiermit,dassdieFunkgerättypenModellFB521dieRichtlinie
2014/53/EUerfüllen.DervollständigeWortlautderEU-Konformitätserklärungen
kannunterfolgenderInternetadresseabgerufenwerden:www.fitbit.com/safety
DeclaraciónUEdeConformidadsimplificada
Porlapresente,FitbitLLCdeclaraqueeltipodedispositivoderadioModeloFB521
cumpleconlaDirectiva2014/53/UE.Eltextocompletodeladeclaraciónde
conformidaddelaUEestádisponibleenlasiguientedireccióndeInternet:
www.fitbit.com/safety
DéclarationUEdeconformitésimplifiée
FitbitLLCdéclareparlaprésentequelesmodèlesd’appareilsradioFB521sont
conformesàlaDirective2014/53/UE.LesdéclarationsUEdeconformitésont
disponiblesdansleurintégralitésurlesitesuivant:www.fitbit.com/safety
DichiarazionediconformitàUEsemplificata
FitbitLLCdichiaracheiltipodiapparecchiaturaradioModelloFB521èconforme
allaDirettiva2014/53/UE.IltestocompletodelladichiarazionediconformitàUEè
disponibilealseguenteindirizzoInternet:www.fitbit.com/safety
73

Argentina

C-27776

AustraliaandNewZealand

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo

Ghana

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2RegulatoryInfo

Indonesia

82058/SDPPI/2022
3788
82061/SDPPI/2022
3788
74

Israel

רפסמרו שיאיטוחלאלשדרשמתרושקתהאו ה.1285755

Japan

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo
201-220211
201-220279
רו סאףי ל חהלתאהנטנאהתירוקמהלשרי שכמהאלותושעלובלכיונישינכטרחא

KingdomofSaudiArabia

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo

Malaysia

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2RegulatoryInfo
75

Mexico

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo
Laoperacióndeesteequipoestásujetaalassiguientesdoscondiciones:
1. Esposiblequeesteequipoodispositivonocauseinterferenciaperjudicialy
2. Esteequipoodispositivodebeaceptarcualquierinterferencia,incluyendola
quepuedacausarsuoperaciónnodeseada
IFT#:RCPFIFB22-1829

Morocco

AGREEPARL’ANRTMAROC
Numérod’agrément:MR00032401ANRT2022
Dated’agrément:25/03/2022

Nigeria

ConnectionanduseofthiscommunicationsequipmentispermittedbytheNigerian
CommunicationsCommission.
76

Oman

TRA/TA-R/13573/22
D172338

Paraguay

NR:2022-04-I-0258

Philippines

TypeAccepted
No:ESD-RCE-2230108

Serbia

77

Singapore

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo

SouthKorea

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2Regulatoryinfo

Taiwan

用戶注意:某些地區的法規內容也可以在 您 的 設 備 上 查 看 。要查看內容
設定 關 於 Sense2法 規 資 訊
Translation:
NoticetotheUser:Regulatorycontentcanalsobeviewedonyourdevice.
Instructionstoviewcontentfromyourmenu:
SettingsAboutSense2Regulatoryinfo
低功率警語
取得審驗證明之低功率射頻 器 材 ,非 經核准,公司、商號 或 使 用 者 均 不 得 擅自變更頻率、 加大功率或變更原設計之特 性 及 功 能 。低功率射頻器材之使用不得影響 飛 航 安 全 及 干 擾 合法通信;經發現有干擾現象時,應立即停用,並 改善至無干擾時方得繼續使用。前述合 法通信,指 依 電 信管理法規定作業之無線電通信。低 功 率 射 頻 器材須忍受合法通信或工 業、科 學 及 醫 療 用電波輻射性電機設備之干擾。
Translation:
78
LowPowerWarning:
Forthelow-powerradiofrequencyequipmentthathasobtainedtheverification
certificate,thecompany,organizationorusershallnotchangethefrequency,
increasethepowerorchangethefeaturesandfunctionsoftheoriginaldesign
withoutapproval.Theuseoflow-powerradiofrequencyequipmentshallnotaffect
flightsafetyorinterferewithlegalcommunications.Ifanyinterferenceisdetected,
thedeviceshouldbedisabledimmediatelyandtheinterferenceremovedbefore
continuinguse.Theaforesaidlegalcommunicationreferstotheradio
communicationoperatedinaccordancewiththeprovisionsofthe
TelecommunicationsManagementAct.Lowpowerradiofrequencyequipment
mustacceptinterferencefromlegalcommunicationorradiowaveradiated
electricalequipmentforindustrial,scientificandmedicaluse.
電池警語
此裝置使用鋰電池。
若未遵照下列準則,則裝置內的鋰離子電池壽命可能 會 縮 短 或 有 損 壞 裝 置 、發 生 火 災 、 化學品灼傷、電 解液洩漏及或受傷的風險。
l
請勿拆解、鑿 孔 或損壞裝置或電池。
l
請勿取出或嘗試取出使用者 不 可 自 行 更 換 的 電 池 。
l
請勿將電池曝露於火焰、爆炸或其他危險中。
l
請勿使用尖銳物品取出電池 。
Translation:
Batterywarning:
Thisdeviceusesalithium-ionbattery.
Ifthefollowingguidelinesarenotfollowed,thelifeofthelithium-ionbatteryinthe
devicemaybeshortenedorthereisariskofdamagetothedevice,fire,chemical
burn,electrolyteleakageand/orinjury.
l
Donotdisassemble,punctureordamagethedeviceorbattery.
l
Donotremoveortrytoremovethebatterythattheusercannotreplace.
l
Donotexposethebatterytoflames,explosionsorotherhazards.
l
Donotusesharpobjectstoremovethebattery.
79
VisionWarning
使用過度恐傷害視力
警語
l
使用過度恐傷害視力
注意事項
l
使用30分鐘請休息10分鐘。未滿2歲幼兒不看螢幕2歲以上每天看螢幕不要超過1
小時
Translation:
Excessiveusemaydamagevision
Warning:
l
Excessiveusemaydamagevision
Attention:
l
Restfor10minutesafterevery30minutes.
l
Childrenunder2yearsoldshouldstayawayfromthisproduct.Children2
yearsoldormoreshouldnotseethescreenformorethan1houraday.
80
TaiwanRoHS
81

Thailand

UnitedArabEmirates

UnitedKingdom

NoticetotheUser:Regulatorycontentforthisregioncanalsobeviewedonyour
device.Toviewthecontent:
SettingsAboutSense2RegulatoryInfo
SimplifiedUKDeclarationofConformity
82
Hereby,FitbitLLCdeclaresthattheradioequipmenttypeModelFB521isin
compliancewithRadioEquipmentRegulations2017.ThefulltextoftheUK
declarationofconformityisavailableatthefollowinginternetaddress:
www.fitbit.com/legal/safety-instructions
FrequencyBandsandPower
Datagivenhereisthemaximumradio-frequencypowertransmittedinthe
frequencyband(s)inwhichtheradioequipmentoperates.
Bluetooth2400-2483.5MHz<13dBmEIRP
NFC13.56MHz<42dBuA/mat10m

Vietnam

AbouttheBattery

Thisunitcontainsanon-replaceableinternallithium-ionbattery.Thebatterycan
burstorexplode,releasinghazardouschemicals.Toreducetheriskoffireorburns,
donotdisassemble,crush,punctureordisposeofinfireorwater.
83
CAUTION:Riskofexplosionifbatteryisreplacedbyanincorrecttype.Disposeof
usedbatteriesaccordingtotheinstructions.
l
Thebatterymustberecycledordisposedofproperly
l
Usethebatteryonlyinthespecifiedequipment
l
Donotleavethebatteryinanextremelyhightemperatureenvironmentthat
mayresultinanexplosionortheleakageofflammableliquidorgas
l
Donotsubjectbatterytoextremelylowairpressurethatmayresultinan
explosionortheleakageofflammableliquidorgas

IPRating

NoticetotheUser:Regulatorycontentcanalsobeviewedonyourdevice.Toview
thecontent:
SettingsAboutSense2RegulatoryInfo
ModelFB521hasawaterresistanceratingofIPX8underIECstandard60529,upto
adepthof50meters.
ModelFB521hasadustingressratingofIP6XunderIECstandard60529which
indicatesthedeviceisdust-tight.

SafetyStatement

Thisequipmenthasbeentestedtocomplywithsafetycertificationinaccordance
withthespecificationsof:IEC60950-1:2005,AMD1:2009,AND2:2013,EN60950-
1:2006+A11:2009+A1:2010+A12:2011+A2:2013,IEC62368-1:2014,EN62368-
1:2014+A11:2017,IEC62368-1:2020+A11:2020,EN62368-1:2018,ENIEC62368-
1:2020+A11:2020,BSEN62368-1:2014+A11:2017,BSENIEC62368-1:2020+
A11:2020.

RegulatoryMarkings

Deviceregulatorymarkingscanbeviewedonyourdevicebyremovingtheband.
Markingsarelocatedinthebandattacharea.
84
BandPocketView
85
©2022FitbitLLC.Allrightsreserved.FitbitandtheFitbitlogoaretrademarks
orregisteredtrademarksofFitbitintheUSandothercountries.Amore
completelistofFitbittrademarkscanbefoundattheFitbitTrademarkList.
Third-partytrademarksmentionedarethepropertyoftheirrespective
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