Philips Sonicare 4100 Series Electric Toothbrush – Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/24
Original price was: $49.96.$39.96Current price is: $39.96.
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 : HX3681/24
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : December 13, 2021
Manufacturer : Philips Sonicare
ASIN : B09LD7WRVS
Best Sellers Rank: #126 in Health & Household (See Top 100 in Health & Household) #1 in Sonic Toothbrushes
Customer Reviews: 4.3 4.3 out of 5 stars (52,693) 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 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)
9 reviews for Philips Sonicare 4100 Series Electric Toothbrush – Sonic Toothbrush with Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/24
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Steve –
Smooth, Even Clean with Smart Features
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!
Alpha –
Not as weak as they say
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.
Races –
Excellent performance, but would love more color variety!
I am so impressed with the Philips Sonicare 4100 Series. I purchased the Deep Pink and Light Pink versions, and they look great in the bathroom. The advanced sonic technology leaves my teeth feeling incredibly clean, and the pressure sensor is a great feature to ensure I’m not brushing too hard.My only wish is that this series came in a wider range of colors. It would be so helpful if there were options like lavender, purple, green, orange, or yellow so that every family member could have their own distinct color to avoid any mix-ups. Aside from the color limitation, it’s a fantastic toothbrush that I highly recommend!
E. Raptis –
New 4100
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.
Taho –
Will update when it fails.
wissam hourani –
سهلة الاستخدام ، قوية وفعالة ، خفيفة.
garchingtom –
Die Zahnreinigung funktioniert sehr gut und ist in der Handhabung einfach und angenehm.Der Akku könnte etwas länger halten.
Hend –
يمكن انا ما احب الطنين ولكن ممكن تناسب البعض الفرشاة ممتازة وتنشحن وتبقى فترة طويلة جداً
Rida –
Amazing