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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 49,111 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Friday, Sep 12
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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: Corded Electric


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: #165 in Health & Household (See Top 100 in Health & Household) #1 in Sonic Toothbrushes


#1 in Sonic Toothbrushes:


Customer Reviews: 4.4 4.4 out of 5 stars 49,111 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 12

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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Top Amazon Reviews

    • Not as weak as they say
Size: 1 Count (Pack of 1) Color: White
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
Review Image by Alpha Alpha
This is my 1st electric toothbrush. I ordered it over the oral b smart 1500 because it's cheaper and I found more people who swear by it than oral b. Later on, I read comments where people who have this 4100 for 10+ years say that the newer 2021 version has only half the power of the old version. Someone on reddit showed images of the inside of the new and old versions and the new version has a small plastic toy-like motor, while the old version has a big copper-wrapped motor and an old version user said "now I understand why the new version is lighter and less powerful". I was disappointed on the new version and tried to cancel the order but I couldn't. Once it came, I decided to try it and to my surprise, it brushes my teeth way better than my manual soft-bristled and hard-bristled toothbrushes(I use both manual brushes daily compared to my daily usage of the electric toothbrush 4100 C2 head of medium bristles. If you have gum sensitive issue, buy the S sensitive or G2 optimal brush head. If you want hard-bristled, buy W diamondclean brush head). I don't know how good the old version was but this newer version definitely brushes better than any manual toothbrush unfortunately it doesn't not come with a travel case. Update 5/16/2024: I bought the Oral B smart 1500 because it was on sale and I wanted to see how better it is compared to the sonicare. The oral B package looks nicer and bigger than the Sonicare but upon opening the smart 1500 package, I saw hair all over the toothbrush. I did read many customers saying on reddit that their Oral b toothbrush were repackaged, but I can't believe I'm a victim of this nastiness. It also took 2 weeks to reach me from Hawaii and since it says "made in China", I think the seller is located in China. I'll return this and I'll advise you to buy the Sonicare instead of the oral b if you don't want to be cheated receiving a used-repackaged toothbrush. Update 05/22/2024: On 05/17/24, I bought the Oral b smart clean 360 which has exact power as the smart 1500 that I returned but the smart 360 has 5 modes and a button to change the mode while the smart 1500 has 3 modes and no button to switch between the modes. The advantage of the oral b smart clean 360 is that the brush heads cost is cheaper than the Sonicare 4100 and I find it better at whitening my teeth than the Sonicare. That's all the advantages there. The things that I don't like with it are many, so I'm just going to name the most annoying ones: 1) The brush heads are too big compared to the Sonicare(see picture): Putting Oral b brush heads in my mouth is like putting a golf ball in my mouth(my head and mouth are wider than the average US male). 2) The brush heads have holes(see pictures) that trap saliva+toothpaste and creates more noise when the brush handle needle rotates in the presence of the liquid mixture, and moisture will be also trapped easily in the holes(most customers complain about Oral b brush heads design. Oral b corrected the needle issue with the IO version but the IO introduced a shallow hole which now traps moisture in the brush handle). When I'm using the Oral b with no choice but to have my mouth wide-open, it forces my mouth to produce more saliva which gets mixed with the toothpaste and enters the brush head and creates more noise. 3) Rattling noise: The Oral b smart clean 360 isn't as noisy as people say. It's the quality of the noise the problem. It's a very unpleasant rattling noise as if you're hearing an old car engine with broken parts in it. That noise gets worse when liquid enters the brush head holes. 4) The charger is not round like a perfect circle: You must put the Oral b brush handle in a specific position to charge it and if you place it wrong, it'll fall and might break. 5) The Daily Clean mode is rough and combined with the big brush head the experience is bad, but the smart clean 360 has more mode which make it smoother and better than the smart 1500 but not as good as the Sonicare 4100. 6)It has no auto-stop mode: You keep brushing without knowing how long you have been brushing your teeth. To summarize, the oral b non-IO brush heads are cheap but very badly designed for a pleasant toothbrushing. I won't recommend it if you're shorter than 6 foot tall or have a small mouth. ... show more
Reviewed in the United States on May 5, 2024 by Alpha Alpha
    • small, powerful, and effective
Size: 1 Count (Pack of 1) Color: Black
I’ve been really happy with my Philips Sonicare toothbrush. It’s compact, which makes it easy to handle and perfect for travel. Despite its small size, it’s surprisingly powerful and leaves my teeth feeling incredibly clean every time. The gentle vibrations are effective without being harsh on the gums. Highly recommend for anyone looking for a simple yet high-quality electric toothbrush. ... show more
Reviewed in the United States on August 18, 2025 by PNS Adventures
    • Great product and support from Philips
Size: 1 Count (Pack of 1) Color: Black
I’m writing this review a year after purchasing this toothbrush, and it has worked very well. It holds a charge for a long time, is very simple to use, and I absolutely love it. Exactly one year after purchase, the toothbrush stopped charging. I contacted Philips, and they quickly assisted me and sent a replacement unit. I really appreciate this, as I expect a toothbrush of this type to last at least two years. ... show more
Reviewed in the United States on August 20, 2025 by Daniel
    • Only comes with USB charger
Size: 1 Count (Pack of 1) Color: White
Perhaps it was in the description and not reading that is my fault, but this Sonicare only came with a USB charger. No regular pronged outlet charger and no box to plug USB into. My house isn’t that old, but I for one do not have USB built into my bathroom outlets. Toothbrush itself is fine. Was just disappointed in the charging. ... show more
Reviewed in the United States on August 14, 2025 by Jody M.
    • Great Brush
Size: 1 Count (Pack of 1) Color: Black
Tried for a few days and absolutely love this. It has two settings low and high. I’ve used others and they had multiple settings to cycle through, bright lights if you press too hard and overall water would run down the toothbrush. Not this one, this has a 2 minute timer with a noise you hear which reminds you to move. If you press too hard, it makes a consistent noise. The brush is soft for those who need a soft brush. I feel my teeth are cleaner. I would 100% buy this again. Way cheaper than the competition and it just feels it does the job better. Oh, after 2 mins it shuts off but when you press the power button, it resumes your previous setting (high or low) without you needing to cycle through ... show more
Reviewed in the United States on August 10, 2025 by Kurt Kindig

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