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Amazon lists it at $49.96, 20% off. That figure is Amazon's, not a price we have recorded.
Philips Sonicare 4100 Rechargeable Electric Toothbrush
Philips Sonicare 4100 Rechargeable Electric Toothbrush, 1 Brush Head, Black | 700% More Plaque Removal¹, Pressure Sensor, 2 Brush Settings, 2-Minute Guided Timer, 14-Day Battery, HX3681/24
The Philips Sonicare 4100 Rechargeable Electric Toothbrush was $39.99 when we checked it on 2026-08-18. Best for: Anyone who wants the dentist-approved basics without paying for a screen or an app.
Achieve 700% better plaque removal than with a manual toothbrush thanks to the Philips Sonicare 4100 Series sonic toothbrush paired with the C2 Optimal Plaque electric toothbrush head. Enjoy a powerful yet gentle clean, even in those hard-to-reach areas. The Advanced Sonic Technology provides gentle yet effective cleaning, pulsing fluid between teeth and along the gumline. With the built-in pressure sensor, you know when to adjust the pressure. Ease off and your gums will stay protected! To help you get used to the Sonicare experience, the EasyStart feature adjusts the power level of the toothbrush over the first 14 uses. Improve your brushing technique with QuadPacer and reach your recommended brushing time of 2 minutes with SmarTimer. Experience up to 14 days of regular brushing after a
Why we picked it
Best for: Anyone who wants the dentist-approved basics without paying for a screen or an app.
The 2-minute SmarTimer and QuadPacer plus a pressure sensor cover the fundamentals, for about $40.
What we like
- + 2-minute SmarTimer with QuadPacer actually gets you to brush the full time
- + Pressure sensor pulses before you brush hard enough to hurt gums
- + 14-day battery means charging every two weeks, not every night
- + Cheapest brush here and still the one dentists hand out samples for
Watch outs
- - Only one brush mode, no setting for sensitive teeth or gums
- - No display and no app, so no brushing history to check
- - Flexible neck feels unfamiliar if you've never used a sonic brush
Philips Sonicare 4100 Rechargeable Electric Toothbrush price history
1 weekly check of our own, from 2026-08-18 to 2026-08-18. How our price tracking works
We hold one price observation for this product, $39.99 on 2026-08-18. A chart needs at least two, so it appears once the next weekly snapshot lands.
About this item
- The C2 Optimal Plaque brush head with soft, flexible, stain-removal bristles helps whiten and polish your teeth; it also removes up to 700% better plaque than a manual toothbrush
- Electric toothbrush for adults providing gentle yet effective cleaning: the Advanced Sonic Technology pulses fluid between teeth and along the gumline for even more effective oral care
- Safe and gentle electric toothbrush with pressure sensor: if you apply too much pressure, the handle will pulse slightly, reminding you to ease off the pressure, protecting your teeth and gums
- Optimize your routine: EasyStart for a gradual, gentle increase in brushing power, SmarTimer informing when you've reached 2 minutes, and QuadPacer to brush each section of a mouth for 30 seconds
- Brush head replacement reminder tracks how often and how hard you brush, then notifies you when it's time to replace the brush head once it's time; dental professionals recommend changing your brush head regularly
- Rechargeable toothbrush providing up to 14 days of regular brushing on a full charge
- Philips Sonicare toothbrush from the #1 dental professional recommended sonic toothbrush brand worldwide²: benefit from Philips expertise to keep your teeth and gums in the best condition
- The set includes: 1x Philips Sonicare 4100 Series electric toothbrush, 1x C2 Optimal Plaque brush head, 1x USB charger (power adaptor not included)
Details
- Product Dimensions
- 2.48 x 4.29 x 8.66 inches; 8.64 ounces
- Item model number
- HX3681/24
- Brand Name
- Philips Sonicare
- Model Name
- 4100 Series
- Model Number
- HX3681/24
Philips Sonicare 4100 Rechargeable Electric Toothbrush: common questions
Is the Philips Sonicare 4100 Rechargeable Electric Toothbrush worth it?
The 2-minute SmarTimer and QuadPacer plus a pressure sensor cover the fundamentals, for about $40. Its Amazon listing shows 4.4 out of 5 stars across 22,749 ratings, which is the retailer's figure and not our verdict.
How much does the Philips Sonicare 4100 Rechargeable Electric Toothbrush cost?
The Philips Sonicare 4100 Rechargeable Electric Toothbrush was $39.99 when we checked it on 2026-08-18. Amazon lists it at $49.96, a price we have never recorded ourselves. Prices change often, so the live retailer link carries the current number.
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$39.99 observed
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