Philips Sonicare 3100 series Sonic Electric Toothbrush - Black

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This Philips Sonicare 3100 series HX3673/14 sonic electric toothbrush is designed for adults seeking a more effective clean than manual brushing. Its key benefit is up to 3x better plaque removal through advanced sonic technology. A potential caveat is the single brushing mode, which may not suit users needing varied intensity.
| Colour | Black |
|---|---|
| Series | 3100 |
| Model Part Number | HX3673/14 |
| Brand | Philips |
A full charge of the built-in Lithium-Ion battery provides up to 336 hours of use, which is approximately 2 weeks of brushing twice a day for 2 minutes.
Philips recommends replacing the brush head every 3 months. The BrushSync replacement reminder feature will alert you when it's time.
Yes, the gentle sonic vibrations are safe for use with braces, crowns, veneers, and implants. However, always consult your dentist if you have specific concerns.
The Easy-Start feature gradually increases the brushing power over the first 14 uses. This helps you adapt to the sensation of using a Sonicare electric toothbrush if you are transitioning from a manual toothbrush.
The Easy-Start feature is automatically activated on your first use. To activate it, press and hold the power button for 2 seconds while the toothbrush is turned off, then press the power button on and off three times within 30 seconds. To deactivate, follow the same procedure.
The toothbrush uses a standard USB charging input (DC 5V). You can connect the USB cable to most standard USB power adapters, computer USB ports, or power banks.
No, the Philips Sonicare 3100 series HX3673/14 does not have a built-in pressure sensor. Users should pay attention to their brushing pressure to avoid excessive force.
Ensure the toothbrush is charged. Check the battery level indicator. If fully discharged, allow it to charge for at least 30 minutes before attempting to turn it on again. Ensure the charger is properly connected.
Make sure the brush head is securely attached to the handle. Remove and reattach it firmly. If the issue persists, try a different brush head (if available) to rule out a faulty brush head.
The battery needs recharging. Connect the toothbrush to the USB charger and allow it to charge fully. A full charge typically lasts up to 2 weeks.
This may indicate a low battery. Charge the toothbrush. Alternatively, ensure the brush head is clean and not clogged. Check for any visible damage to the brush head.
Verify the USB cable is securely connected to both the charging base and the power source. Try a different USB port or power adapter. Ensure the charging contacts on the handle and base are clean.
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