Going electric might feel like a big step, but with this brush you’re in safe hands. Its slim ergonomic design and familiar-shaped head gives you everything you need, and nothing you don't. Sonicare technology gently pulses water between your teeth, for a difference you can feel. With two intensity settings, you can also choose a more gentle clean.
Q: How long does the battery last on this Philips Sonicare toothbrush?
A: This toothbrush has a long battery life, lasting for 2 weeks on a single charge.
Q: How many intensity settings does this toothbrush have?
A: This toothbrush offers two different intensity settings for a personalized cleaning experience.
Q: Does this toothbrush have a timer to ensure I brush for the right amount of time?
A: Yes, it has a 2-minute SmarTimer with QuadPacer to help you achieve the dentist-recommended brushing time.
Q: Does this toothbrush come with a travel case?
A: No, this particular model does not come with a travel case.
Q: What type of battery is used in this toothbrush?
A: This toothbrush uses a Lithium-ion battery.
Q: What type USB cable & charger does it use: A, B, or C?
A: Hello! The Philips Sonicare toothbrush model HX3661/04 uses a USB Type A cable. Please note that a wall adapter is not included in the package. Only use 5V IPX4 adapter (Type A).
Q: If I don't like the toothbrush, am I able to return it even if it's used?
A: Hello! You may reach out to BestBuy for further assistance regarding the return of your product.
Q: Where can we buy a replacement brush head if we need to replace the brush head?
A: Hello! The replacement brush heads for the Philips Sonicare 2100 Power Toothbrush are available in BestBuy. You can use any Philips Sonicare snap-on or click-on brush head type for this model, except the Philips One by Sonicare brush heads.
Customers often highlight the impressive battery life and superior cleaning ability of the 2100 Power Toothbrush. Many appreciate its ease of use and the helpful built-in timer. While some users mention the toothbrush is louder than expected, the overall performance and value are frequently praised.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

Going electric might feel like a big step, but with this brush you’re in safe hands. Its slim ergonomic design and familiar-shaped head gives you everything you need, and nothing you don't. Sonicare technology gently pulses water between your teeth, for a difference you can feel. With two intensity settings, you can also choose a more gentle clean.

Going electric might feel like a big step, but with this brush you’re in safe hands. Its slim ergonomic design and familiar-shaped head gives you everything you need, and nothing you don't. Sonicare technology gently pulses water between your teeth, for a difference you can feel.

Remove plaque and experience a deep, effective clean with Sonicare technology, removing up to 7x more plaque vs. a manual toothbrush. Sonicare technology gently pulses water between your teeth, for a month's worth of manual brushing in just 2 minutes. The QuadPacer lets you know when you've spent the optimal amount of time on each section of your mouth while the SmarTimer signals when your 2 minutes is up. The pressure sensor flashes red to remind you to ease off, helping to prevent gum recession, while the 2 intensity settings ensure a comfortable clean that’s right for you. Going electric might feel like a big step, but with this brush you’re in safe hands. Its slim ergonomic design and familiar-shaped head gives you everything you need for an effective clean. The kit includes 1 Philips Sonicare 4100 electric toothbrush, 1 Optimal Plaque Control (C2) brush head and 1 USB charger (wall adaptor not included).

Improve daily oral hygiene routines with this Philips Sonicare electric toothbrush. An internal sensor regulates applied pressure to prevent soreness of teeth and gums, and the BrushSync reminder lets you know when it's time to change the brush head. This Philips Sonicare electric toothbrush removes up to seven times more plaque than a regular toothbrush to maintain oral health.
| Pros for Philips Sonicare - 2100 Power Toothbrush, Rechargeable Electric Toothbrush - White Mint | |||
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| Cons for Philips Sonicare - 2100 Power Toothbrush, Rechargeable Electric Toothbrush - White Mint | |||