Side-by-side comparison based on expert reviews and community consensus.
Oral-B iO Series 9
Best Smart FeaturesOral-B Kids Electric Toothbrush
Best for KidsPrice
$150-$220
$25-$35
Summary
The top of the iO line for users who want AI-powered brushing feedback, a full-color display, and app connectivity. CNET notes the iO series has five brush modes — more than most competitors — and the 9 adds the most comprehensive smart tracking.
Tom's Guide calls it the best kids' electric toothbrush, with an ergonomic grip, 2-minute timer, pressure sensor, and gentle oscillating movement sized for small mouths. Wirecutter also notes the Pro 1000 handle works with Oral-B's kid-size heads as a family-friendly alternative.
Pros
- AI-powered brushing map tracks coverage across all tooth zones
- Full-color interactive display shows mode and battery
- Five cleaning modes including whitening and super sensitive
- Magnetic drive system for smooth, quiet operation
- Premium travel case included
- Ergonomic grip designed for small hands
- Built-in 2-minute brushing timer
- Pressure sensor gum alert prevents overbrushing
- Gentle oscillating and rotating movement appropriate for kids
- Fun design encourages brushing habits
Cons
- Expensive — hard to justify vs. Pro 1000 for cleaning performance alone
- Battery life still only ~2 weeks
- App required to unlock full value of smart features
- iO replacement heads are costly at scale
- Many users find smart features gimmicky after initial novelty
- Not rechargeable at base model — uses replaceable batteries
- Brush head replacement options more limited than adult line
- Less durable than adult Oral-B models
- Kids may outgrow it quickly
Our take
Most people don't need this, and Reddit will tell you the Pro 1000 cleans just as well. But if you're a data-driven person who actually wants to improve brushing technique, the iO9's AI coaching is the most capable Oral-B has ever built.
For parents who want a dedicated kids' brush in the Oral-B ecosystem, this delivers all the right features — timer, pressure alert, gentle action — without overwhelming a child's mouth.
Buy
