Oral-B iO9 electric toothbrush in black with charging travel case
Save £330

Oral-B iO9 Electric Toothbrush with AI Position Detection

7 cleaning modes • AI brushing guidance • Extended battery • Travel case included • Was £530

4.4/5(226 reviews)
£199.98£530.00Save 62%
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Pros

  • 100% more plaque removal vs manual toothbrush with iO oscillating-rotating technology
  • AI Position Detection guides full-mouth coverage via the app
  • 7 cleaning modes for diverse oral health and sensitivity needs
  • Extended battery with travel case charging holder
  • Interactive display shows mode, battery, and brushing feedback
  • Currently £330 off original price

Cons

  • Full AI guidance requires the companion app — manual use still effective but simplified
  • Replacement brush heads are an ongoing consumable cost (£15–25 per set)
  • Larger handle than basic electric toothbrushes

Full Review

The Oral-B iO9 sits at the top of Oral-B's flagship iO range — a smart electric toothbrush that combines Oral-B's clinically proven oscillating-rotating brush head with AI-powered brushing guidance and a full suite of premium features. The core technology is Oral-B's iO technology: oscillating-rotating microvibrations that remove 100% more plaque than a manual toothbrush and clean up to 300% more effectively along the gumline. The dentist-inspired round head geometry is the same design professional cleanings use, adapted for powered daily use. The AI Position Detection system uses the companion app to track where in the mouth you're brushing in real time, ensuring full-mouth coverage. The interactive display on the handle shows mode selection, battery level, and a brushing progress indicator. Eight out of ten users who engaged with the AI guidance became measurably better brushers within one week, according to Oral-B's study data. Seven cleaning modes (Daily Clean, Sensitive, Whitening, Gum Care, Intense Clean, Tongue Clean, and Super Sensitive) allow customisation for different oral health needs. The extended battery provides multiple days of use between charges, and the included travel case doubles as a charging and toothbrush head holder for travel. At £199.98 (reduced from £530), this represents significant value for what was the brand's top-end product.

Specifications

TechnologyOscillating-rotating + microvibrations (iO)
Cleaning Modes7
AI FeaturePosition Detection via companion app
OperationAutomatic (built-in battery)
DisplayInteractive colour LED display
Included3 brush heads, charging travel case, head holder
Plug Type2-pin (bathroom shaver socket)
ASINB0BZPT88T2

Frequently Asked Questions

What is the difference between the Oral-B iO9 and iO3?

The iO9 adds AI Position Detection, a 3-zone pressure sensor (not just over-pressure warning), an interactive display, 7 cleaning modes (vs 3 on the iO3), and a travel case. The core iO brush head technology is shared across the range.

Do I need the app to use the Oral-B iO9?

No — the iO9 works fully as a standalone electric toothbrush without the app. The AI position detection and brushing guidance features are app-dependent, but all 7 cleaning modes and the timer function work independently.

Are Oral-B iO brush heads compatible with the iO9?

Yes — all Oral-B iO Series brush heads (Ultimate Clean, Gentle Care, Whitening, etc.) are compatible with the iO9 handle. Older Oral-B EB-series heads (for Pro and Vitality models) do not fit the iO range.

How often should I replace the brush head?

Oral-B recommends replacing the iO brush head every 3 months, or when the blue indicator bristles fade to white. Using a worn head significantly reduces cleaning effectiveness.

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