Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04
Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04
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Philips Sonicare 3100 Series Electric Toothbrush - Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/04

Key item features

  • The C1 Simply Clean brush head with soft, flexible bristles removes up to 300% better plaque than a manual toothbrush while protecting your gums
  • 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 when it's time to replace the brush head; dental professionals recommend changing your brush head every 3 months
  • 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 3100 Series electric toothbrush, 1x C1 Simply Clean brush head, 1x USB charger (power adaptor not included)
Current price is Now $39.96
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Customer ratings & reviews

4.4 out of 5 stars
stars7,053 ratings3,830 reviews
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Reviews summary

Pros

  • : Simple and convenient to use without hassle.
  • : Signals when to switch sections and shuts off after 2 minutes.
  • : Provides great value at a lower cost.
  • : Holds charge for extended periods.
  • : Lasts a significant amount of time on a single charge.

Neutral

  • : Can be slim and lightweight, but also slippery or thin for some users.
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Showing 1-3 of 3,830 reviews

Apr 13, 2026
Cleaner Teeth 314
5 out of 5 stars review

Seller Verified Purchase

[This review was collected as part of a promotion.] I had a Quip toothbrush before this one. I thought it was good, but I kept having various service issues like batteries stuck, metallic paint peeling off in the holder. I had enough, and was looking for a replacement when I found this Sonic. After my first use, I realized how much cleaner my teeth felt. What an improvement!

Review from philips.com
Helpful?7K8RK40PN742302141440
Apr 14, 2026
Slimbo Jimbo
5 out of 5 stars review

Seller Verified Purchase

I am satisfied with the 4100 series.

[This review was collected as part of a promotion.] I saw a recommendation about using an electric toothbrush. The reasons were based on the improved brushing provided by an electric toothbrush over the old standby hand brushing which I had been doing since I was a child. I ordered a brand model that was recommended based on features and price. I am still learning how to brush effectively. So far, I am pleased with the Philips 4100 series and hope to improve my brushing ability.

Review from philips.com
Helpful?7K8RK40PN742302141440
Apr 28, 2026
Ace68
5 out of 5 stars review

Seller Verified Purchase

Better oral health

[This review was collected as part of a promotion.] My teeth are a lot cleaner and my gums are healthier. My dentist can see significant improvements in my oral health since switching to Sonic toothbrush. It is the best electric brush I have ever had. I know I am brushing the right amount of time because of the two minute timer. It vibrates when I apply too much pressure when brushing and lets me know when it is time to change brush heads.

Review from philips.com
Helpful?7K8RK40PN742302141440