Sonicare 3100 Series


Goodbye manual toothbrush. Hello Sonic technology.

Sonic technology combined with our brush action gently removes plaque up to 3x better* than a manual toothbrush.

SKU: HX3671/23 Category:

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 in just 2
minutes.** 31000 brush strokes per minute gently clean your teeth, break up plaque, and sweep it away for an exceptional daily clean.

Removes plaque 3x better*
The Sonicare electric toothbrush with advanced sonic technology is 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.

Protects your gums
Built-in pressure sensor automatically detects pressure you apply, warns you, and reduces the toothbrush vibrations automatically to help protect your gums. The toothbrush will make a pulsing sound as a reminder to ease off the pressure. 7 out of 10 people found this feature helped them become better brushers.

SmartTimer and QuadPacer
2 minute SmarTimer 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.

BrushSync replacement reminder
All brush heads wear out over time, so you’ll want to keep an eye on yours to make sure you’re still getting a great clean. Our BrushSync technology tracks how long you’ve been using your brush head for, and how hard you’ve been brushing. The BrushSync replacement reminder on your handle and a short beep gives you a heads up when it’s time to replace it.

Our Easy-Start program gives you the option of a gradual, gentle increase in brushing power the first 14 times you use your new toothbrush.

Long lasting battery life
Battery life lasts up to 14 days so you can go long periods without charging.

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 189,210 kg less plastic every year. That’s powerful, right?


Product Dimension
Weight 0.73 kg
Dimensions 6.3 × 10.9 × 22 cm
Technical Specifications

Technical Specifications

Modes Clean: For exceptional everyday clean
Items included Handle: 1 3100 Series
Brush heads: 1 C2 Optimal Plaque Defense
Charger: 1
Design and finishing Color: White
Cleaning performance Performance: Removes up to 3x more plaque*
Pressure feedback: Vibrates handle to alert user
Timer: Quadpacer and SmarTimer
Smart sensor technology BrushSync Replacement Reminder: Always know when to, replace brush heads
Pressure sensor: Alerts when brushing too hard
Ease of use Handle: Slim ergonomic design
Battery indicator: Light shows battery status
Brush head system: Easy click-on brush heads
BrushSync Replacement Reminder: Replacement reminder, Always know when to replace brush heads, Reminder icon lights up, to always ensure best results
Technical specifications Battery: Rechargeable
Battery type: Lithium ION
Operating time (full to empty): 14 days*****
Power Voltage: DC5V
Service Warranty: 2-year limited warranty