Philips Sonicare 4100 review

The Sonicare 4100 is the clearest example of what most people need from an electric toothbrush and nothing more. Philips lists a built-in pressure sensor that detects how hard you push, warns you with a pulsing sound and reduces the vibrations automatically, which matters because brushing too hard is the most common mistake people make when they switch. A 2 minute SmarTimer and a 30-second QuadPacer split the routine into four even quarters, and Philips lists a 14-day battery, long enough for a week away without the charger. Philips claims up to 7x more plaque removal than a manual brush. The regular price on Philips' US store is $49.96, and it was on sale for $39.96 when we checked in November 2026. What you give up is extras: there is no app, no mode menu and no travel case listed for this model. For people upgrading from a manual brush, that is the point.

Who it is for

first-time electric brush buyers on a budget

Price

$49.96 regular price at Philips US ($39.96 on sale as of November 2026).

Price was $ 49.96 $ 39.96 -20% Add to cart
Quoted from the vendor pricing page on November 12, 2026.

Key features

• Built-in pressure sensor warns you and automatically reduces vibrations when you press too hard
• 2 minute SmarTimer and 30-second QuadPacer
• 14-day battery life listed by Philips
• Philips says it removes up to 7x more plaque than a manual toothbrush
• Slim ergonomic handle in black, deep pink or white

Strengths and weaknesses

• Strength: Lowest regular price on this list at $49.96
• Strength: The pressure sensor cuts vibration power itself, not just a warning light
• Strength: Uses standard Sonicare click-on brush heads
• Weakness: No app, no mode menu and no travel case listed for this model
• Weakness: Philips lists the HX3681/24 color as currently only available at retailers
• Weakness: Smaller plaque claim (7x) than the Series 5700 and 7100 (1000%)

Key facts

• Price: $49.96 regular, $39.96 sale
• Model: HX3681/26
• Battery: 14 days
• Pressure sensor: Yes, reduces vibrations
• Timer: 2 minute SmarTimer, 30 second QuadPacer

Where it ranks

Philips Sonicare 4100 is No. 1 in our Best Electric Toothbrushes verdict.