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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 single charge, bringing a new level of convenience to your brushing routine (based on two periods of two-minute brushings per day on standard mode).

Did you know that brush heads become less effective after three months? The replacement reminder tracks how often and how hard you brush, then reminds you to replace your brush head once it’s time for a new one.

¹ vs. a manual toothbrush
² based on a study of over 2,600 dental professionals (dentists and hygienists) conducted in the United States, Canada, Japan, China, Korea, Thailand, Germany, the United Kingdom, Switzerland, France, Belgium, Austria, Italy, Spain, Sweden in 2022-2023
Product Dimensions ‏ : ‎ 2.48 x 4.29 x 8.66 inches; 8.64 ounces
Item model number ‏ : ‎ HX3681/23
Batteries ‏ : ‎ 1 Lithium Ion batteries required. (included)
Date First Available ‏ : ‎ December 13, 2021
Manufacturer ‏ : ‎ Philips Sonicare
ASIN ‏ : ‎ B09LD8T445
Best Sellers Rank: #132 in Health & Household (See Top 100 in Health & Household) #1 in Sonic Toothbrushes
Customer Reviews: 4.3 4.3 out of 5 stars (52,427) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
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; 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)