Side-by-side comparison based on expert reviews and community consensus.
Philips Sonicare DiamondClean 9900
Best Smart SonicarePhilips Sonicare for Kids Design a Pet Edition
Best Sonicare for KidsPrice
$300-$380
$35-$50
Summary
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.
Wirecutter's top pick for kids' electric toothbrushes — smaller brush head, fun animal stickers, and a rubberized back make it ideal for first-time young brushers. Rechargeable and genuinely kid-friendly.
Pros
- 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
- Smaller brush head sized appropriately for children
- Customizable with colorful animal stickers
- Rechargeable with built-in two-minute timer
- Wirecutter's top-rated kids' electric toothbrush pick
Cons
- 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
- More expensive than basic battery-powered kids' brushes
- Replacement heads cost more than Oral-B kids' heads
- May be too large for very young toddlers
Our take
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.
This is the Sonicare to get for kids. The smaller head and fun customization actually get children excited to brush, which is the whole battle.
Buy