2 Years General Warranty.

Sonic electric toothbrush

HX3671/23
Goodbye manual toothbrush. Hello Sonic technology.

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

Goodbye manual toothbrush. Hello Sonic technology.

Up to 3x better plaque removal*

Sonic technology
Pressure sensor
QuadPacer and SmarTimer
Slim ergonomic design

Our unique technology brings you a powerful yet gentle clean

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.

Up to 3x better plaque removal vs a manual toothbrush*

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.

Built-in pressure sensor protects your teeth and 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.

Always know when to replace your brush heads

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.

14-day long lasting battery life

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

Use less. Reuse more

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 4 years. That's powerful, right?

Technical Specifications

Items included

Brush heads: 1 C2 Optimal Plaque Defence
Charger: 1
Handle: 1 3100 Series

Modes

Clean: For exceptional everyday clean

Ease of use

Battery indicator: Light shows battery status
Brush head system: Easy click-on brush heads
Handle: Slim ergonomic design
BrushSync Replacement Reminder
- Replacement reminder
- Always know when to
- replace brush heads
- Reminder icon lights up
- to always ensure best results

Power

Voltage: DC5V

Design and finishing

Color: White

Cleaning performance

Performance: Removes up to 3x more plaque*
Timer: Quadpacer and SmarTimer
Pressure feedback: Vibrates handle to alert user

Service

Warranty: 2-year limited warranty

Technical specifications

Battery: Rechargeable
Operating time (full to empty): 14 days*****
Battery type: Lithium ION

Smart sensor technology

BrushSync Replacement Reminder
- Always know when to
- replace brush heads
Pressure sensor: Alerts when brushing too hard