Side-by-side comparison based on expert reviews and community consensus.
Philips Sonicare 4100
Best Overall SonicarePhilips Sonicare DiamondClean 9900
Best Smart SonicarePrice
$40-$60
$300-$380
Summary
The go-to Sonicare for most people — it has a pressure sensor, two-minute timer with quadrant pacing, and solid cleaning power. It's the Wirecutter pick and consistently recommended across expert and community sources.
The flagship Sonicare with the most advanced sensor technology and app integration available. Built for people who want real-time brushing feedback and the absolute best Sonicare has to offer.
Pros
- Pressure sensor prevents gum damage
- Two-minute timer with quadrant pacing built in
- Compatible with a wide range of Sonicare brush heads
- Sleek, well-designed handle with solid grip
- Most advanced pressure and motion sensors in the Sonicare lineup
- Deep app integration with real-time brushing guidance
- Premium build quality and design
- Multiple brushing modes for every oral care need
Cons
- Replacement brush heads cost more than double Oral-B's
- Fewer brush modes than higher-end Sonicare models
- Higher long-term ownership cost due to pricier refills
- Very expensive at ~$380 retail
- Most people won't use the advanced smart features enough to justify the price
- Replacement brush heads remain costly
- Overkill for casual users
Our take
If you want a Sonicare and don't want to overthink it, the 4100 is the one. It does everything that matters and nothing you don't need.
At $380, this is a hard sell for most people — but if you're serious about your oral health and want the most data-rich brushing experience Sonicare makes, the 9900 is it.
Buy
