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Philips Sonicare

Philips Sonicare 4100 Rechargeable Electric Toothbrush, with Pressure Sensor, 2 Intensity Settings, SmarTimer and QuadPacer, 14-Day Battery Life, White, Model HX3681/23

  • Based on 51,241 reviews
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, Dec 11
Order within 7 hours and 45 minutes
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Size: 1 Count (Pack of 1)


Color: White


Features

  • Advanced plaque removal: this sonic toothbrush is clinically proven to remove up to 7x more plaque than a manual toothbrush while protecting your gums
  • Gentle on gums: Philips Sonicare sonic electric toothbrush for adults offers a superior brushing experience and features soft brush heads with nylon bristles for gentle yet effective clean
  • Smart brushing: a pressure sensor that automatically detects pressure you apply, warns you, and reduces the toothbrush vibrations to help protect your gums
  • Enhance your oral care routine with sonic technology: 31,000 brush strokes per minute gently clean your teeth, break up plaque, and sweep it away for an exceptional daily clean
  • Sleek white design: a stylish white electric toothbrush that enhances any bathroom aesthetic
  • The set includes: 1x handle, 1x C2 Optimal Plaque Control brush head, 1x USB charger

Description

Elevate your dental hygiene routine with the Philips Sonicare 4100 electric toothbrush, designed for ultimate oral care. The toothbrush provides a powerful yet gentle cleaning action that removes up to 7x more plaque vs. a manual toothbrush, promoting gum health and overall wellness. With a pressure sensor and two intensity settings, this electric toothbrush is tailored to protect sensitive gums and optimize your brushing experience. The included C2 Optimal Plaque Control brush head ensures a thorough clean with its soft nylon bristles, while the round head shape allows for easy manoeuvrability. The toothbrush's SmarTimer and QuadPacer guarantee that you brush for the dentist- recommended two minutes, making your dental hygiene routine efficient. The Philips Sonicare 4100 is a reliable companion, at home or on the go − it works perfectly as a travel toothbrush as well. The set includes a charger to maintain its long-lasting lithium-ion battery that operates for up to two weeks on a single charge. The BrushSync technology tracks how long you've been using your brush head for, and how hard you've been brushing.The BrushSync replacement reminder on your handle and a short beep gives you a heads up when it's time to replace the brush head. With its sleek white design and ergonomic handle, the Philips Sonicare 4100 not only prioritizes your oral health but also delivers comfort and durability, making it a smart addition to your wellness routine. Make the switch to a Philips Sonicare toothbrush and feel the difference.

Brand: Philips Sonicare


Age Range (Description): Adult


Special Feature: Pressure Sensor,Brushing Timer,Rechargeable,Lightweight,Ergonomic


Power Source: Battery Powered


Item Firmness Description: Soft


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


Best Sellers Rank: #38 in Health & Household (See Top 100 in Health & Household) #1 in Sonic Toothbrushes


#1 in Sonic Toothbrushes:


Customer Reviews: 4.3 4.3 out of 5 stars (51,392)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Dec 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Smooth, Even Clean with Smart Features
Size: 1 Count (Pack of 1) Color: Black
After 14 years with my Oral‑B Pro 100, I decided to switch to the Philips Sonicare 4100 Rechargeable Electric Toothbrush (Model HX3681/24) when my old brush finally gave out. I’m glad I did—the Sonicare makes the surface of my teeth feel noticeably smoother and cleaner than my Oral‑B ever did. The sensation was a little strange at first, but I appreciate that the intensity gradually increases over time, which helped me adjust quickly. I also love the SmarTimer and QuadPacer features. Both brushes had 2‑minute timers, but Sonicare’s 30‑second intervals ensure I give equal attention to every section of my mouth. With my Oral‑B, I tended to spend more time on certain areas, so this is a big improvement. The lithium battery is another plus—I don’t have to swap it out nearly as often as I did with my old brush. Time will tell if it lasts as long as my Oral‑B did, but so far, I’m very impressed. Overall, this toothbrush is sleek, effective, and thoughtfully designed. Highly recommend! ... show more
Reviewed in the United States on December 3, 2025 by Steve
    • Works great
Size: 1 Count (Pack of 1) Color: White + Brush Head Case
Quality made product that works very well. Brushes my teeth well, dental hygeniest is happy with my tooth and gum health. Product is easy to use and a single charge last a really long time, using it 2x a day. Travel case for heads is nice but I use a regular toothbrush when away from the house unless overnight. ... show more
Reviewed in the United States on November 28, 2025 by Pulga
    • Super Clean, Hygiene King, Low Price
Size: 1 Count (Pack of 1) Color: Black
Review Image by David Davys David Davys
You are done buying those $5 walmart electric toothbrushes that run out of battery, then forget about for months. With this new Philips Sonicare toothbrush, my mouth has never felt cleaner before. It is a very powerful toothbrush I will say and for the cheap price that I got it on amazon’s sale was amazing! The bristles of the brush are just the perfect soft for your teeth and gums. It feels like it truly cleans every part that it touches as it moves back and forth. It fits very well in my restroom and the charger stand is so convenient and probably my favorite thing to use about this device because when you set it down, IT BUZZES! I love the color it’s classy tuxedo vibes. An awesome toothbrush all-round. ... show more
Reviewed in the United States on October 3, 2025 by David Davys David Davys
    • New 4100
Size: 1 Count (Pack of 1) Color: White
I've had my first Sonicare for 9 1/2 years, and while it still works, the battery light never reaches full any more, and this is the first time I've seen them on sale, so I went for this one. I paid around $30 instead of $50 on Black Friday sale. They say they don't give you a wall plug for sustainability, which is clearly a falsehood. If they cared about sustainability, I'd be able to use my perfectly good previous wall charger. Do they honestly think we want to charge our toothbrushes from our laptops? It's ludicrous. I found a link on their website where you can request a wall charger brick. In the mean time, I'm using one I already had. Who knows if it's appropriate. I should have just stuck with my old charger. One star off for this. The toothbrush itself is fine. I picked this one because I don't think they need more than one button. It has all the features I need: timer and high or low intensity. Also the pressure sensor is a nice touch. It's thinner to hold and makes a lot less noise. I like the change for that reason alone. All my variety of Sonicare and non-Sonicare brush heads work. So far so good. We'll see if this one lasts 9 1/2 years, though. ... show more
Reviewed in the United States on November 24, 2025 by E. Raptis
    • My Teeth Have Never Felt So Clean — It’s Like a Car Wash for Your Mouth
Size: 1 Count (Pack of 1) Color: Black + Brush Head Case
This toothbrush?? A POWER TOOL. The first time I used it, my mouth was like, “Wow okay, we’re doing professional-level cleaning at home now.” First Impressions Lightweight, sleek, simple — not one of those overly complicated toothbrushes with 47 modes you’ll never use. Just one button. One mission. Make your teeth SHINE. Using It The vibration?? STRONG. Like “I didn’t know my teeth could feel THIS clean” strong. My gums were like: “Ma’am… what is this level of attention??” After the first brush: • My teeth felt smooth • My breath felt fresher • My mouth felt like it had a college degree It has a built-in timer so you stop rushing and actually brush for the dentist-recommended two minutes instead of your usual 17 seconds. Why It SLAPS • Cleans between teeth like it’s trying to expose secrets • Removes plaque like it owes you money • Still gentle on gums • Quiet enough that I don’t sound like I’m starting a lawn mower at 7AM And the vibration pattern is chef’s kiss. It pauses every 30 seconds to tell you to move to the next quadrant — which is helpful because I absolutely forget how time works. Pros • SUPER clean feeling • Easy to charge • Lightweight • Great battery life • Doesn’t have unnecessary features • Dentist-level clean at home Cons • The first time you use it, your brain might rattle slightly (you adjust fast) • It will absolutely expose how badly you used to brush Final Verdict If you want clean, smooth, dentist-approved teeth without paying $150+ for a fancy model — get this. Affordable, powerful, simple, and effective. My mouth has never felt cleaner and my dentist is going to think I got my life together. ... show more
Reviewed in the United States on November 22, 2025 by Raquel Brueggemann

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