Page 1
Sonic electric
toothbrush with app
DiamondClean
Smart 9700
Personalized coaching
Smart brush head sensors
Smart brush head recognition
5 modes, 3 intensi ties
HX9957/51
Our best ever toothbrush, for complete oral care
Feel confident, with 100% coverage
The DiamondClean Smart is our best toothbrush, for complete care. Four highperformance brush heads let you focus on all areas of your oral health, and our
Smart Sensor technology gives you personalized feedback and coaching.
Proven to improve oral health
Removes up to 10x more plaque* for a deep clean
Up to 7x healthier gums* in just 2 weeks
Remove up to 100% more stains** in just 3 days
Enjoy long-lasting fresh breath
Personalized in-app coaching to perfect brushing
Guides you to brush and highli ghts missed areas
Start taking better care of your trouble areas
Alerts you if you're pressing too hard
Guides you to reduce your scrubbing
Takes you back to any missed spots for 100% coverage
Optimize your brushing
Brush heads automatically select the optimal settings
Make sure you're getting the most from your brush head
Choose from 5 modes and 3 intensity settings
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Sonic electric toothbrush with app
HX9957/51
Highlights
Say goodbye to plaque
Click on the C3 Premium Plaque Control brush
head to experience our deepest clean. With
soft flexible si des, the bristles contour to the
shape of each tooth's surface to provide 4x
more surface contact*** and remove up to 10x
more plaque from hard-to-reach areas*.
Care for your gums
Click on the G3 Premium Gum Care brush head
to improve your gum health. Its smaller si ze
and targeted gum line bristles deliver gentle
yet effective cleaning along the gum line,
where gum disease starts. It's clinically proven
to deliver up to 100% less gum i nflammation*
and up to 7x healthier gums i n just two weeks.*
Whiter teeth, fast
Click on the W3 Premium White brush head to
remove surface stains and reveal your whitest
smile. With its densely packed central stain
removal bristles, i t's cli nically proven to remove
up to 100% more stains in just three days.**
TongueCare+ tongue brush
Click on the TongueCare+ tongue brush to
gently remove odor causing bacteria from the
pores of your tongue. Its 240 specially
designed MicroBristles get between all your
tongue's ridges and grooves to remove bacteria
and debris that lead to bad breath. Team with
our antibacterial BreathRx tongue spray for
superior cleaning and super fresh breath.
Focus areas and goal-setting
Any trouble areas your dentist has pointed out?
We'll highli ght them on your in-app 3D mouth
map, and remind you to pay extra attention to
these areas.
Never miss a spot
The Philips Sonicare app lets you know when
you've achieved a thorough clean, and
coaches you to be a better, more mindful
brusher.
Easy does it
With an electric toothbrush, you let the brush
do the work. We've built a scrubbing sensor
into your handle as a gentle reminder to
reduce scrubbing. This way, you can improve
your technique and get a gentler, more
effective clean.
BrushSync mode pairing
Wondering which mode and intensity you
should use? Wonder no longer. A microchip in
your brush head tells your DiamondClean
Smart which one you're using. So if you click
on a gum-care brush head, for example, your
toothbrush knows to select the optimal mode
and intensity to provide a gentle yet effective
care for your gums. All you need to do is to
press the power button.
Page 3
Sonic electric toothbrush with app
HX9957/51
Specifications
Modes
Clean: For exceptional everyday clean
White+: To remove surface stains
Deep Clean+: For an invigorating deep clean
Gum Health: Special attention to molars
TongueCare+: For long lasting clean breath
3 intensities: High, Medium, Low
Items included
Handle: 1 Di amondClean Smart
Brush heads: 3 C3 Premium Plaque Control, 2
G3 Premium Gum Care, 2 W3 Premium White
standard, 1 TongueCare+ tongue brush
Glass charger: 1
Travel case: USB charging travel case
BrushSync Mode Pairing
C3 Premium Plaque Control: Pai rs with Clean
mode
G3 Premium Gum Care brush head: Pairs with
Gum Health mode
W3 Premium White brush head: Pairs with
White+ mode
TongueCare+ tongue brush: Pairs with
TongueCare mode
Connectivity
Bluetooth® wireless technology: Connected
brushing app
Compatibility
Android compatibility: Android phones,
Bluetooth 4.0 enabled tablets
iOS compatibility: iPad 3rd Gen or higher,
iPhone 4S or higher, with iOS7 or higher
Design and finishing
Color: Blue
Cleaning performance
Speed: Up to 62000 brush movement/min
Performance: Removes up to 10x more
plaque*
Health benefits: Up to 7x healthier gums****
Whitening benefits: Up to 100% less stains*****
Pressure feedback: Ring lights up in purple,
Vibrates handle to alert user
TouchUp: Ensures 100% coverage
Timer: BrushPacer and SmarTimer
Smart sensor technology
Pressure sensor: Alerts when brushing too
hard
Location sensor: Tracks & improves coverage
Scrubbing sensor: Guides to reduce scrubbing
3D mouth map: Highli ghts trouble areas
TouchUp: To address missed spots
Ease of use
Handle compatibility: Easy cli ck-on brush
heads
Brush head recognition: Syncs with optimal
mode
Replacement reminder: To always ensure best
results, reminder icon lights up
Battery indicator: Illuminated icon indicates
battery life
Handle: Sli m ergonomic design
Display: Illuminated display
Technical specifications
Battery: Rechargeable
Battery type: Lithium ION
Operating time (full to empty): 14 days******
Power
Voltage: 110-220 V
Service
Warranty: 2-year limited warranty
* Re moves up to 7x more plaque vs. a manual toothbrus h
* * a s compared to a manual toothbr ush wit h a leading
white ning toothpa ste
* * compared to DiamondClean
* ** * in Gum Health mode vs a manual toothbr ush at 2
weeks
* ** ** after 3 days of us e in White+ mode vs a manual
toothbrush
* ** ** based on tw o periods of two-minute brushing s per
day on standard mode
© 20 21 Koninklijke Philips N.V.
All Right s reser ved.
Specifications are subject to change
without notice. Trademarks a re the
property of Koninklijke Philips N.V. or
their respective owner s.
Issue date 202 1‑0 5‑ 22
Version: 18.3.1
EAN: 00 0750 2 00 645
09
www.phili ps.com
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