Oral-B
iO Series 9
Oral-B's flagship: micro-vibrations layered on the classic round oscillating-rotating head.

Type
electric / oscillating
Bristles
soft
Tier
premium
Key features
- 7 cleaning modes
- AI position detection
- Interactive color display
- Smart pressure sensor (red/green/white)
Pros
- + Strong plaque removal
- + Real-time coaching
- + Quiet vs older Oral-B models
Cons
- - Very expensive
- - Proprietary iO brush heads
Evidence note
Oscillating-rotating brushes have among the strongest evidence bases in meta-analyses of plaque control.
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Oral-B
iO Series 3
The most affordable iO model: quieter magnetic drive and smart pressure sensor without the display.