---
product_id: 545747661
title: "PHILIPS Sonicare 4100 Electric Toothbrush, Rechargeable Electric Toothbrush with Pressure Sensor, Black HX3681/24"
brand: "philips sonicare"
price: "$149.31"
currency: USD
in_stock: true
reviews_count: 13
category: "Philips Sonicare"
url: https://www.desertcart.us/products/545747661-philips-sonicare-4100-electric-toothbrush-rechargeable-electric-toothbrush-with-pressure
store_origin: US
region: United States of America
---

# 2-week battery life Pressure sensor alert 5x plaque removal PHILIPS Sonicare 4100 Electric Toothbrush, Rechargeable Electric Toothbrush with Pressure Sensor, Black HX3681/24

**Brand:** philips sonicare
**Price:** $149.31
**Availability:** ✅ In Stock

## Summary

> 🦷 Elevate your smile game with tech that cares as much as you do!

## Quick Answers

- **What is this?** PHILIPS Sonicare 4100 Electric Toothbrush, Rechargeable Electric Toothbrush with Pressure Sensor, Black HX3681/24 by philips sonicare
- **How much does it cost?** $149.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/545747661-philips-sonicare-4100-electric-toothbrush-rechargeable-electric-toothbrush-with-pressure)

## Best For

- philips sonicare enthusiasts

## Why This Product

- Trusted philips sonicare brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Pressure Sensor:** Protect your gums with real-time alerts that prevent overbrushing and sensitivity.
- • **Dentist-Approved Timer:** Built-in 2-minute SmarTimer with QuadPacer ensures you brush the right way, every time.
- • **Plaque? Gone 5x Faster:** Clinically proven to remove up to 5 times more plaque than manual brushing for a radiant smile.
- • **Sleek & Lightweight Design:** Modern black finish and ergonomic handle make brushing a stylish, effortless habit.
- • **Travel-Ready USB Rechargeable:** Long-lasting battery with USB charging keeps your oral care routine seamless on the go.

## Overview

The PHILIPS Sonicare 4100 HX3681/24 is a rechargeable electric toothbrush designed for adults, featuring a pressure sensor to protect sensitive gums, two intensity settings, and a 2-minute SmarTimer with QuadPacer to ensure optimal brushing time. It removes up to 5 times more plaque than manual toothbrushes and offers a long-lasting battery life of up to two weeks per charge, rechargeable via USB for convenience. The package includes one handle, one Optimal Plaque Control brush head, and a USB charger.

## Description

Product description Philips Sonicare 4100 Electric Toothbrush, Rechargeable Electric Toothbrush With Pressure Sensor, Black Hx3681 24 Directions Apply gentle pressure while brushing your teeth. Brush for a full 2 minutes, dividing your mouth into quadrants and spending equal time to each quadrant. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning Do not submerge handle in water. Use only for intended oral hygiene purposes. Keep out of reach of young children when not in use. Consult a dentist before use by children under 7 or persons with medical concerns. See more

Review: A superb toothbrush. - This is an excellent toothbrush, and a quantum leap over my old Philips one. The design is sleek and modern , yet light and easy to hold. The sonic action is the best I've experienced with an electric toothbrush. It's not especially quiet, but works well. It makes a soft 'bleep' sound if you're pressing too hard, which is a useful touch. The fact it's rechargeable with a USB is very handy as well for when travelling - no clumsy Euro plug adapter required here. It costs a bit more than other Philips models, but I feel it's worth it, especially with a longer battery life and additional features.
Review: So glad I invested in a sonicare toothbrush. - This has been game-changing for my dental routine. Instead of brushing hard and pressing too much into my teeth, I allow the brushes to glide over and the vibrations do the rest. I get such a glistening clean effect that I never got from my old electric toothbrush. The battery is fantastic, it can last me upto 4 days with cleaning twice a day. The extra setting is really good and flosses alongside my WaterPik, leaving a really deep clean. It's very good at what it does. I love the fact it's pink, too. Perfect for His and Her's sides of the bathroom, with my fiance's sonicare on the other side of the sink. Great product! Easy to use and incredibly effective. Thank you!

## Features

- Removes up to 5x more plaque vs. a manual toothbrush
- Pressure sensor and two intensity settings protect sensitive gums from overbrushing
- 2 minute SmarTimer with QuadPacer ensure Dentist-recommended brushing time
- Long battery life with battery light indicator: One charge last for 2 weeks.Includes: 1 Philips Sonicare 4100 handle, 1 Optimal Plaque Control (C2) brush head, and 1 USB charger (wall adaptor not included)
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LD7WRVS |
| ASIN  | B09LD7WRVS |
| Age Range Description | Adult |
| Batteries  | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | 11,851 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 44 in Sonic Toothbrushes |
| Brand | Philips Sonicare |
| Customer Reviews | 4.4 4.4 out of 5 stars (33,443) |
| Customer reviews | 4.4 4.4 out of 5 stars (33,443) |
| Date First Available | 24 Feb. 2022 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item model number  | HX3681/24 |
| Manufacturer  | Philips Sonicare |
| Product Dimensions  | 6.3 x 10.9 x 22 cm; 244.94 g |
| Units | 1.0 Count |

## Product Details

- **Age range (description):** Adult
- **Brand:** Philips Sonicare
- **Colour:** Black
- **Item firmness description:** Soft
- **Material feature:** Sustainable
- **Number of items:** 1
- **Power source:** Battery Powered
- **Special feature:** Brushing Timer, Pressure Sensor
- **Toothbrush Head Shape:** Round
- **Unit count:** 1.0 Count

## Images

![PHILIPS Sonicare 4100 Electric Toothbrush, Rechargeable Electric Toothbrush with Pressure Sensor, Black HX3681/24 - Image 1](https://m.media-amazon.com/images/I/71Nuz9Sjl1L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Why doesn't the new 4100 model have a regular plug ?  why on gods green earth did they cheap out and put a usb plug in there ??**
A: According to the review in WireCutter (Sept 2022), you can contact SonicCare and receive a free plug adapter.  I've just ordered the 4100 on Amazon.  I don't have the serial number yet, because the product doesn't arrive until tomorrow, but SonicCare customer service just told me that they would send the free plug adapter once I provide the model number and serial number to them.  They confirmed there is no charnge.  It will take 7-10 days to receive the plug adapter once I am able to provide them with the serial number.  I'll do all of that after the product arrives tomorrow.

**Q: Does anybody make a single speed electric toothbrush? I'm so tired of cycling through the speeds**
A: Cycling is the most effective way to brush each quadrant sufficiently.

**Q: What is the purpose of having two intensity modes? How do you know when you should use one or the other?**
A: if you have more sensitive teeth and gums you can use the softer mode

**Q: What do the green and yellow lights mean? what about the beeping noise after the 2 minute brush? I thought low battery but is it replacement head?**
A: Hi! When the brush head replacement reminder light of Philips Sonicare Toothbrush HX3681/24 lights up amber, kindly replace your brush head.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A superb toothbrush.
*by M***E on 1 January 2026*

This is an excellent toothbrush, and a quantum leap over my old Philips one. The design is sleek and modern , yet light and easy to hold. The sonic action is the best I've experienced with an electric toothbrush. It's not especially quiet, but works well. It makes a soft 'bleep' sound if you're pressing too hard, which is a useful touch. The fact it's rechargeable with a USB is very handy as well for when travelling - no clumsy Euro plug adapter required here. It costs a bit more than other Philips models, but I feel it's worth it, especially with a longer battery life and additional features.

### ⭐⭐⭐⭐⭐ So glad I invested in a sonicare toothbrush.
*by B***N on 3 September 2025*

This has been game-changing for my dental routine. Instead of brushing hard and pressing too much into my teeth, I allow the brushes to glide over and the vibrations do the rest. I get such a glistening clean effect that I never got from my old electric toothbrush. The battery is fantastic, it can last me upto 4 days with cleaning twice a day. The extra setting is really good and flosses alongside my WaterPik, leaving a really deep clean. It's very good at what it does. I love the fact it's pink, too. Perfect for His and Her's sides of the bathroom, with my fiance's sonicare on the other side of the sink. Great product! Easy to use and incredibly effective. Thank you!

### ⭐⭐⭐⭐⭐ Review of sonicare 4100
*by R***N on 13 February 2026*

Great product, lasts well after charged. Timer and different levels of intensity.

## Frequently Bought Together

- Philips Sonicare 4100 Rechargeable Electric Toothbrush, with Pressure Sensor, 2 Intensity Settings, SmarTimer and QuadPacer, 14-Day Battery Life, Black, Model HX3681/24
- Toothbrush Replacement Brush Heads for Philips Sonicare C1 C2 ProtectiveClean 4100 5100, Electric Sonic Tooth Refill Head Plaque Control, 10 Pack, Black
- BrightDeal Replacement Heads for Philips Sonicare ProtectiveClean 4100 5100 6100 DiamondClean 9500 ExpertClean 7500 FlexCare HealthyWhite Electric Sonic Toothbrush C3 G3 W3 C2 G2 Brush, White, 6 Pack

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*