Philips Sonicare 4100 Series Electric Toothbrush - Advanced Sonic Technology, Pressure Sensor, Two Intensity Settings, Smartimer & Quadpacer, Black, Model HX3681/24

Condition: Open Box, Grade A. All pieces included. Functions properly.

The Philips Sonicare 4100 Series Electric Toothbrush gives your mouth a deep clean every day. This brush removes more plaque than manual brushes. Enjoy its advanced sonic technology and smart features. You get reliable performance and easy use. Sonicare sonic technology cleans gently yet powerfully.

This Sonicare 4100 model is made for strong daily cleaning. It creates up to 31,000 brush movements per minute. This means it breaks up plaque along the gumline and between teeth. The brush removes up to seven times more plaque than regular manual toothbrushes. There is a built-in pressure sensor that helps protect sensitive gums. When you push too hard, the toothbrush pulses gently. This helps prevent gum irritation or recession and is safer for long-term oral health.

The Philips Sonicare 4100 in black, Model HX3681/24, has two easy-to-select intensity settings. Choose a lower setting for comfort or a higher setting for a more powerful clean. The toothbrush features a built-in Smartimer to ensure you brush for two minutes. The Quadpacer pauses every 30 seconds, reminding you to cover all four sections of your mouth. These features help reach dentist-recommended cleaning.

Its slim, ergonomic design fits naturally in your hand. The Sonicare 4100 doesn’t just look modern; it is light and comfortable for everyone. Travel with confidence due to the 14-day battery life. Whether you’re at home or away, this electric toothbrush is easy to charge with the included USB charger.

The BrushSync technology ensures you know when it's time for a new brush head. A reminder light and gentle beep let you know when the bristles have worn out. Using a fresh brush head keeps your cleaning performance high and your mouth healthy. Brush heads are widely available, and Philips offers easy replacements.

This model is ideal for busy people as well as families. Kids and adults find it easy to use. Simply rinse the detachable brush head and wipe down the handle after use for quick cleaning. The product is water-resistant and can be kept in most bathroom settings. Charging takes only a few hours. One charge lasts up to two weeks with regular use.

Key features include:

• Advanced sonic technology: 31,000 brush strokes per minute
• Removes up to 7x more plaque than a manual toothbrush
• Pressure sensor to avoid brushing too hard
• Two intensity settings: low and high
• Smartimer and Quadpacer for thorough coverage
• Lightweight, ergonomic handle
• Long-lasting battery: up to 14 days per charge
• BrushSync reminder for optimal cleaning

To learn more, visit the Sonicare Wikipedia page. Or browse more products in our Personal Care Collection.

Sonicare 4100 Series FAQ

• How does the pressure sensor protect my gums?
  The pressure sensor is built into the brush handle. It measures how hard you push as you brush. If you use too much pressure, the brush handle pulses softly. This reminds you to use a gentle touch. By alerting you before you harm your gums, it helps prevent redness, swelling, or gum loss. Even if you rely on habit, this sensor keeps your brushing safe over time.
• What are the Smartimer and Quadpacer good for?
  The Smartimer counts down from two minutes. This matches the time recommended by dentists for each session. The Quadpacer makes the toothbrush pause every 30 seconds. This brief pause signals you to move to a new quadrant in your mouth. You get an even clean and no area is missed. These tools guide your brushing without effort, helping build better habits for oral care.
• When do I need to replace the brush head, and why?
  Every brush head wears out with use. The BrushSync reminder helps you know when to change it. A small light on the brush handle comes on, and sometimes a soft tone plays. This tells you to put on a new brush head. Changing the head on time keeps your cleaning strong and your mouth healthy. Using an old brush head weakens cleaning and can spread germs. Make sure to swap out the head every three months, or sooner if the bristles look faded.

The Sonicare 4100 Series is a top choice for everyday dental hygiene. It's easy to use and built for effective plaque control. If oral care, electric, Sonicare, or pressure sensor are important, this brush gives you value and confidence for each routine.