Choose one option for setup: computer or a compatible mobile device11
Option A: set up with your computer11
Option B: set up with polar flow app using your mobile device or tablet12
Languages13
Wristband14
Menu structure15
Activity16
My day16
Training16
Favorites16
My heart rate16
Settings16
2
Watch faces17
Pairing18
Pair a Heart Rate Sensor with A37018
Settings19
Settings menu19
Display setting19
Time of day setting20
Restart A37020
Reset A37020
Firmware Update21
With computer21
With mobile device or tablet21
Flight mode21
Turn flight mode ON22
Turn flight mode OFF22
Time view icons22
Training23
How to wear your A37023
Start a Training Session24
Start a training session with a target24
During training25
Training views25
Training with heart rate25
3
Training with a duration or calorie based training target26
Training with a phased training target27
Pause/Stop a training session27
Training Summary28
After Training28
Training summary in A37028
Polar Flow App29
Polar Flow Web Service30
Features31
24/7 Activity Tracking31
Activity Goal31
Activity data31
Inactivity alert32
Sleep information in the Flow web service and Flow app32
Activity data in Flow App and Flow web service33
GPS from mobile33
Smart notifications (iOS)33
Smart Notification Settings33
Polar Flow mobile app33
Do not disturb setting in Polar Flow app34
Do not disturb setting on your A37034
Phone settings35
Use35
4
Dismissing Notifications35
The Smart Notifications Feature Works via Bluetooth Connection36
Smart notifications (Android)36
Smart Notification Settings36
Setting the Smart Notifications on/off36
Do not disturb setting in Polar Flow app37
Do not disturb setting on your A37037
Block apps38
Phone settings38
Use38
Dismiss Notifications38
The Smart Notifications Feature Works via Bluetooth Connection38
Using A370 as a Heart Rate Sensor Accessory39
Polar Smart Coaching features39
Activity Guide39
Activity Guide on the A37040
Activity Benefit40
Continuous Heart Rate41
Smart Calories41
Heart Rate Zones41
Polar Running Program45
Create a Polar Running Program45
Start a running target46
5
Follow your progress46
Weekly award46
Polar Sleep PlusTM47
Sleep data on your A37047
Sleep data in the Flow app and web service47
Polar Sport Profiles47
Training Benefit48
Alarm49
Polar Flow app and Web Service50
Polar Flow App50
Pair a Mobile Device with A37050
Polar Flow Web Service51
Feed51
Explore51
Diary51
Progress51
Community52
Programs52
Plan Your Training52
Create a Training Target52
Quick Target53
Phased target53
Favorites53
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Sync the Targets to your A37053
Favorites54
Add a Training Target to Favorites:54
Edit a Favorite54
Remove a favorite54
Polar Sport profiles in Flow Web Service54
Add a Sport profile55
Edit a Sport Profile55
Syncing56
Sync with Flow mobile App56
Sync With Flow Web Service Via FlowSync56
Important Information58
Taking Care of Your A37058
Storing59
Service59
Batteries59
Charging A370 battery59
Battery Operating Time61
Low Battery Notifications61
Precautions61
Interference62
Minimizing Risks When Training62
Technical Specification63
7
A37063
Polar FlowSync Software and USB Cable64
Polar Flow Mobile Application Compatibility64
Water Resistance65
Limited International Polar Guarantee65
Disclaimer66
8
INTRODUCTION
Congratulations on your new A370! Polar A370 is a sleek and sporty fitness tracker with continuous wristbased heart rate, advanced Sleep Plus sleep analysis and Polar’s trusted training features. Get an instant
overview of your daily activity on your A370 or with Polar Flow app. Together with the Polar Flow web service
and the Flow app your A370 helps you to understand how your choices and habits affect your well-being.
This user manual helps you get started with your new A370. To check the video tutorials and the latest version
of this user manual, go to www.polar.com/support/A370.
1. Touchscreen
2. Button
l To activate the display: press the button or turn your wrist when you're wearing the fitness tracker.
l To change the watch face: tap and hold the display in time view, and swipe up or down. Then choose
one by tapping it.
POLAR A370
Polar A370 is a sleek and sporty fitness tracker that keeps you on the pulse by monitoring heart rate from the
wrist 24/7. It tracks your daily steps, distance and calories burned, and keeps you connected with smart notifications from your phone. The advanced Polar Sleep Plus sleep analysis follows your sleeping patterns and
gives you feedback on your sleep. Polar A370 helps you train smarter with Polar’s trusted training features,
such as heart rate zones and Polar Running Program, and uses your phone’s GPS to track speed and distance during your outdoor workouts. You can even use Polar A370 as a heart rate sensor and connect your
heart rate to fitness apps or compatible Bluetooth devices, like Polar training devices, e.g. Polar M460. You
can buy additional wristbands separately.
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USB CABLE
The product set includes a standard USBcable. You can use it for charging the battery and syncing data
between your A370 and Flow web service via FlowSync software.
POLAR FLOW APP
You can start using your A370 also with the Flow app and update your A370 wirelessly too. View your activity
and training data at a glance. Flow app syncs your activity and training data wirelessly to the Polar Flow web
service. Get it on the App StoreSMor Google playTM.
POLAR FLOWSYNC SOFTWARE
Polar FlowSync syncs your data between your A370 and the Polar Flow service on your computer. Go to flow.-
polar.com/start to start using your A370 and to download and install the FlowSync software.
POLAR FLOW WEB SERVICE
Plan your training, follow your achievements, get guidance and see detailed analysis of your activity and training results. Let all your friends know about your achievements. Find all this at polar.com/flow.
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GET STARTED
SET UP YOUR A370
When you get hold of your new A370, it’s in storage mode. It wakes up when you plug it into a computer for
setup or a USB charger for charging. We recommend that you charge the battery before you start using your
A370. If the battery is completely empty, it takes a couple of minutes for the charging to start. See Batteries
for detailed information on charging the battery, battery operating times and low battery notifications.
CHOOSE ONE OPTION FOR SETUP: COMPUTER OR A COMPATIBLE MOBILE DEVICE
You can choose how to set up your A370, with a computer and a USBcable or wirelessly with a compatible
mobile device. Both methods require an Internet connection.
l Mobile setup is convenient if you don't have access to a computer with a USB port, but it might take
longer.
l Wired setup is quicker and you can charge your A370 at the same time, but you need a USB cable and
computer available.
OPTION A: SET UP WITH YOUR COMPUTER
1. Go to flow.polar.com/start and install the FlowSync software to set up your A370 and update the firm-
ware if needed.
2. Push down the top part (A) of the USB cover inside the bracelet to access the micro USB port and plug
in the supplied USB cable (B).
Don't charge the device when its USB port is wet. If the USB port of your A370 has gotten wet,
let it dry up before plugging in.
3. Plug the other end of the cable into the USB port of your computer for setup and charging the battery
11
(C).
4. Then we’ll walk you through signing up for the Polar Flow web service and personalizing your A370.
To get the most accurate and personalized activity and training data, it’s important that you’re precise with the physical settings when signing up for the web service. When signing up, you can choose
a language and get the latest firmware for your A370.
When closing the USB cover, make sure it fits flush on the device.
After the setup is done, you’re ready to go. Have fun!
OPTION B: SET UP WITH POLAR FLOW APP USING YOUR MOBILE DEVICE OR TABLET
Polar A370 connects to the Polar Flow mobile app wirelessly via Bluetooth Smart, so remember to have it
turned on in your mobile device.
1. To make sure there’s enough charge in your A370 during the mobile setup, just plug the USB cable in a
powered USB port or a USB power adapter. Make sure that the adapter is marked with "output 5Vdc"
and that it provides a minimum of 500mA. The display begins to show an animated circle with
Bluetooth and USB icons.
Don't charge the device when its USB port is wet. If the USB port of your A370 has gotten wet,
let it dry up before plugging in.
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2. Go to the App StoreSMor Google PlayTMon your mobile device and search and download the Polar
Flow app.
The mobile compatibility is available at polar.com/support.
3. When you open the Flow app it recognizes your new A370 nearby and prompts you to start pairing it.
Accept the pairing request and enter the Bluetooth pairing code from your A370 to the Flow app.
Make sure your A370 is powered up in order to make the connection possible.
4. Then create an account or sign in if you already have a Polar account. We’ll walk you through the signup and setup within the app. Tap Save and sync when you’ve defined all the settings. Your personalized settings will now be transferred to the bracelet.
To get the most accurate and personal activity and training data, it’s important that you’re precise with
the settings.
Please notice your A370 may get the latest firmware update during the wireless setup, and depending on your connection it may take up to 20 minutes to complete. Your A370 will receive the language
package according to your selection in the setup and it will also take some time.
5. A370 display will open to the time view once the synchronization is done.
You’re ready to go, have fun!
LANGUAGES
When you set up your A370, you can select one from the following languages to use it with:
l English
l Spanish
l Portuguese
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l French
l Danish
l Dutch
l Swedish
l Norwegian
l German
l Italian
l Finnish
l Polish
l Russian
l Chinese (simplified)
l Japanese
l Indonesian
l Turkish
l Czech
l Korean
After the setup you can change the language in the Flow app or in the web service.
WRISTBAND
The wristband of your A370 is easy to change. Very handy if you want to color coordinate with your outfit, for
example.
1. Bend the wristband from both sides, one side at a time, to detach it from the device.
14
2. Pull the device from the wristband.
To attach the wristband, perform the steps in the reverse order. Make sure the band fits flush with the device
on both sides.
MENU STRUCTURE
You can turn on the display by turning your wrist or press the button on the side.
Enter and browse through the menu by swiping the touch screen up or down. Select items by tapping the
icons, and return with pressing the button on the side.
15
ACTIVITY
Your daily activity goal is visualized in some of the watch faces and in the activity bar in My day menu. For
example, you can see your progress towards the goal how the clock numbers fill up with color in one.
For more information, see 24/7 Activity Tracking.
MY DAY
Here you'll see the progress of your daily activity goal in more detail, steps and calories and any training sessions you've done so far during the current day or any planned training sessions you've created in the Flow
web service. If you wear your A370 at night, you'll see your sleep information from the previous night. Also if
you have continuous HR on, you'll see your lowest recorded heart rate from the previous night and during the
day the lowest and the highest so far.
Tap each event in your day to see the it in more detail. To see what you have left to go to reach your daily activity goal, tap the activity data.
TRAINING
This is where you start your training sessions. Tap the icon to access the sport selection menu. You can edit
the selection in the Flow web service to keep your favorite sports more easily accessible on your A370. Go to
Flow, click your name and Sport profiles. Add or remove your favorite sports from there and remember to
sync to get them on your device.
To start training, wait for your heart rate to appear next to a sport icon and tap the sport icon and the training
session begins.
If you want to have your location information of your outdoor training session, you need to have your phone
with you during the training session. Wait for the GPS icon to become static before starting the session. See
here for more information.
FAVORITES
In Favorites you'll find training sessions you have saved as favorites in the Flow web service. If you've not
saved any favorites in Flow, this item is not in the A370 menu.
For more information, see Favorites.
MY HEART RATE
Here you can quicky check your current heart rate.
SETTINGS
In Settings you can toggle Continuous HR mode, Flight mode, Do not disturb mode and HR sensor mode on
and off, power the device down, reset Bluetooth connections and see device-specific information.
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WATCH FACES
To change the watch face of your fitness tracker:
1. Tap and hold the touch display with your finger until you see a thumbnail menu of the watch faces:
2. Swipe up or down to see them all and tap the one you choose.
Here are the options:
l Vertical clock and date
l Activity bar filling from left to right
l Big clock with date and running seconds
l Available in several colors
l Analog clock with date
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l Default vertical clock
l Activity shown with color filling up the numbers with the daily activity goal progress
PAIRING
Bluetooth Smart ® heart rate sensor has to be paired with your A370 for them to function together. Pairing
takes only a few seconds, and ensures that your A370 receives signals from only your sensors and devices,
and allows disturbance-free training in a group. Before entering an event or race, make sure that you do the
pairing at home to prevent interference from other devices.
Polar A370 fitness tracker is compatible with Polar Bluetooth Smart® heart rate sensors H6, H7 and H10.
PAIR A HEART RATE SENSOR WITH A370
When using a Polar Bluetooth Smart® heart rate sensor, A370 does not measure heart rate from the wrist.
There are two ways to pair a heart rate sensor with your A370:
1. Wear the heart rate sensor, and press and hold the button in time view until a message displays to
touch the device with the A370.
2. Touch the heart rate sensor with your A370.
3. Pairing completed is shown when you're done.
OR
1. Wear the heart rate sensor, tap Training on your A370.
2. Touch the heart rate sensor with your A370.
3. Pairing completed is shown when you're done.
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SETTINGS
SETTINGS MENU
You can access Settings from the main menu. Tap to turn icons green when their function is ON.
Continuous heart rate. Toggle off or on the continuous tracking of your HR.
Flight mode. Cuts off all wireless connections from the fitness tracker.
Do not disturb mode. Disables the display turning on from your wrist movement and blocks
Smart notifications from your phone.
HRsensor mode. Use your A370 as a heart rate sensor accessory with a HR receiving device.
Power off. Turn off the device.
Reset current Bluetooth connections. To use any Bluetooth accessories, you need to pair them
again with the device.
Information. See your device ID, firmware version, etc.
Press the side button to return to time view.
DISPLAY SETTING
You can choose on which hand you want to wear your A370 either in the Polar Flow web service or the Polar
Flow mobile app. The setting changes the orientation of the A370 display accordingly.
We recommend wearing the bracelet on your non-dominant hand to get the most accurate activity tracking
results.
You can edit your settings any time in the Polar Flow web service and mobile app.
To change the display setting on your computer
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1. Plug in your A370 to your computer's USB port, go to polar.com/flow and sign in.
2. Go to Products and Settings.
3. Choose your A370, click and change the handedness.
The display orientation on your A370 will change on the next synchronization.
To change the display setting on the mobile app
1. Go to Devices.
2. Choose the desired wrist handedness for your A370.
The display orientation on your A370 will change on the next synchronization.
TIME OF DAY SETTING
The current time and its format are transferred to your A370 from your computer system clock when you sync
with the Polar Flow web service. To change the time, you'll first need to change the time zone on your computer and then sync your A370.
If you change the time or time zone on your mobile device and sync the Polar Flow app with the Polar Flow
web service and your A370, the time also changes on your A370. Your mobile device needs to have Internet
connection available in order to change the time.
RESTART A370
You can restart your A370 from the Settings menu. Touch the power iconto turn the device off. Press
the side button to restart it.
RESET A370
If you experience problems with your A370, try resetting it. Resetting empties your A370 of all information and
you need to set it up again for your personal use.
Reset your A370 in FlowSync with your computer:
1. Connect your A370 to the computer with the supplied USB cable.
2. Open settings in FlowSync.
3. Press the Factory Reset button.
You can also reset your A370 from the bracelet itself:
20
1. Go to Settings in the main menu.
2.
Tap the power iconto turn the device off.
3. While the Turning off text is shown, press the button again for five seconds.
Now you need to set up your A370 again, either via mobile or computer. Just remember to use the same Polar
account in the setup you've used before resetting.
FIRMWARE UPDATE
WITH COMPUTER
You can update the firmware of your A370 yourself to keep it up to date. Whenever a new firmware version is
available, FlowSync will notify you when you connect A370 to your computer. The firmware updates are downloaded via FlowSync.
Firmware updates are performed to improve the functionality of your A370. They can include improvements to
existing features, completely new features or bug fixes.
To update the firmware:
1. Plug your A370 to your computer with the USB cable.
2. FlowSync starts syncing your data.
3. After syncing, you are asked to update the firmware.
4. Choose Yes. New firmware is installed (this may take some time), and A370 restarts.
You won't lose any data due to the firmware update: Before the update begins, the data from your A370 is
synced to the Flow web service.
WITH MOBILE DEVICE OR TABLET
You can also update the firmware with your mobile device if you're using Polar Flow mobile app to sync your
A370 training and activity data. The app will let you know if there's an update available and will guide you
through it. We recommend you plug in the A370 to a power source before starting the update to ensure flawless update operation.
The wireless firmware update may take up to 20 minutes, depending on your connection.
FLIGHT MODE
Flight mode cuts off all wireless communication from your A370. You can still use it, but you can't sync your
data with the Polar Flow mobile app or use it with any wireless accessories.
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