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Sonic electric
toothbrush
1100 Series
Sonic technology
QuadPacer and SmarTimer
Slim ergonomic design
14-day battery li fe
HX3641/21
Goodbye manual toothbrush. Hello Sonic
technology.
Up to 3x better plaque removal*
Sonic technology combined with our brush action gently removes plaque up to 3x
better* than a manual toothbrush.
Provides superior clean
Up to 3x better plaque removal vs a manual toothbrush*
Our unique technology brings you a powerful yet gentle clean
Protects your gums
Safe and gentle to use
Optimize your brushing
Optimize your brushing wi th SmarTimer and QuadPacer
Designed around you
Ergonomic design makes the toothbrush easy to hold and use
14-day long lasting battery li fe
Use less. Reuse more
Easy transition to Sonicare
Easy-Start to ease the transition
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Sonic electric toothbrush
HX3641/21
Highlights
Advanced Sonic Technology
Powerful bristle vibrations drive microbubbles
deep between your teeth and along your gum
line for a refreshing experience. You will get
two month' s worth of manual brushing i n just 2
minutes.** 31000 brush strokes per minute
gently clean your teeth, break up plaque, and
sweep it away for an excepti onal daily clean.
Removes plaque 3x better*
The Sonicare electric toothbrush with advanced
sonic technology i s clinically proven to remove
plaque up to 3X better* than a manual
toothbrush. It removes plaque from your teeth
and along the gum line while protecting your
gums.
Safe and gentle to use
Sonicare toothbrush provides you with a
thorough clean without being harsh on your
teeth and gums. Gentle yet powerful sonic
vibrati ons provide an excepti onal clean while
being gentle on your teeth and gums.
SmartTimer and QuadPacer
2 minute SmarTi mer and 30-second
QuadPacer guide you to brush for the
recommended time in all areas of your mouth
to ensure a complete clean.
Designed around you
Slim, light-weight, and ergonomic design
makes the toothbrush easy to hold and use so
that you can get an amazing clean without any
strain.
Long lasting battery life
Battery life lasts up to 14 days so you can go
long periods without charging.
Easy-Start
Our Easy-Start program gives you the option of
a gradual, gentle increase i n brushing power
the first 14 times you use your new toothbrush.
Goodbye adapter. Hello USB.
Power adapters may seem small, but added
together, their plastics make a huge impact on
the environment. By switching to USB charger
in our Philips Sonicare 1000-4000 Series
alone, we can use up to 189,2 10 kg less plastic
every year. That's powerful, right?
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Sonic electric toothbrush
HX3641/21
Specifications
Modes
Clean: For exceptional everyday clean
Items included
Handle: 1100 Series
Brush heads: 1 C2 Optimal Plaque D efence
Charger: 1
Design and finishing
Color: Mint green
Cleaning performance
Performance: Removes up to 3x more plaque*
Timer: Quadpacer and SmarTimer
Ease of use
Handle: Sli m ergonomic design
Battery indicator: Light shows battery status
Brush head system: Easy click-on brush heads
Technical specifications
Battery: Rechargeable
Battery type: Lithium ION
Operating time (full to empty): 14 days*****
Power
Voltage: DC5V
Service
Warranty: 2-year li mited warranty
* vs manual toothbru sh for healthier tee th and gu ms
* Individual results may vary
* * Da ta on file
* ** ** 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 owners.
Issue date 202 1‑10 ‑05
Version: 12.0.1
www.phili ps.com
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