Philips Sonicare 3100 Rechargeable Electric Toothbrush, HX4021/01, White

Electric White: Philips Sonicare 3100 HX4021/01 is an adult rechargeable sonic toothbrush with two intensity settings, a pressure sensor and brushing prompts. Its timed routine and gradual EasyStart increase suit people moving from manual brushing, while the listing says the charger is included but the power adaptor is not.

At a glance

Select between Medium and Low intensity settings.
QuadPacer prompts a change of brushing area every 30 seconds, with SmartTimer indicating the end of a two-minute session.
EasyStart gradually increases brushing power over the first 14 cleans.
Battery icon indicates remaining charge, and the listing claims up to 14 days of regular brushing per full charge.

Price

$27.95Save 35%

Reference price: ~~$42.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Two intensity options and a pressure sensor provide useful guidance without requiring an app.
QuadPacer and SmartTimer offer straightforward pacing for a complete brushing session.
EasyStart is designed to ease the transition from manual brushing.

Technical specifications

13 specifications

Identity
Brand	Philips Sonicare
Model	HX4021/01
Colour	White
Intended age	Adult

Brushing
Brush motion	Vibrate
Intensity options	2
Intensity levels	Medium and Low
Special features	Brushing Timer, Pressure Sensor, Rechargeable, Sonic
Bristle movements	31,000 bristle movements
Brushing prompts	every 30 seconds, the QuadPacer will prompt you to clean a new area; after 2 minutes, the SmartTimer will indicate your session is complete

Power and battery
Power configuration	Battery Powered
Battery life claim	up to 14 days of regular brushing after one full charge

Dimensions and weight
Parcel dimensions	21.8 x 10.8 x 5.4 cm; 260 g

What to know before buying

Listing details to confirm

The listing gives battery life as up to 14 days with regular brushing. Its detailed description specifies two two-minute brushings daily on standard mode, so treat this as a mode- and usage-dependent claim. The listing says one charger is included but its power adaptor is not, while a separate battery field says a battery is included. Confirm the selected listing's charging and battery provisions before purchase. The claimed up-to-300% plaque-removal comparison is against a manual toothbrush and is a listing claim, not an independent result.

Who is it for?

A good fit for

Adults switching from a manual brush who want gradual adjustment and timed prompts.
Buyers who prefer a rechargeable sonic brush with two intensity choices and a pressure sensor.

Less suited to

Buyers who need a power adaptor explicitly confirmed in the package.
Shoppers seeking multiple brush heads, as the listing identifies one head.

Philips Sonicare 3100 Rechargeable Electric Toothbrush, HX4021/01, White · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 35 ratings

5 stars82%82%
4 stars18%18%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied evidence contains aggregate ratings but no customer-comment summary, so it does not establish what buyers liked or disliked. The distribution is positive overall, but ratings alone cannot show whether the pressure sensor, intensity options or timed prompts meet a particular buyer's needs.

Frequently asked questions

How many intensity settings does the Philips Sonicare 3100 list?

It lists two intensity settings, Medium and Low.

What brushing prompts does it provide?

The listing says QuadPacer prompts a new area every 30 seconds and SmartTimer indicates when a two-minute session is complete.

Does the package include a power adaptor?

The feature listing says a charger is included but the power adaptor is not. Confirm the selected package details if you need an adaptor.

How long does the battery last?

The listing claims up to 14 days of regular brushing per full charge. Its description ties that claim to two two-minute sessions each day on standard mode.