Oral-B Rechargeable Electric Toothbrush, iO9 Genius, 7 Cleaning Modes, Interactive Display, Charging Travel Case, Visible…
Oral-B
Best for
Best premium
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$249.97
Updated May 20, 2026 · 1 min read

Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the iO9 Genius is the most fully loaded smart toothbrush in Oral-B's mainstream range, with the color interactive display, seven cleaning modes including tongue cleaning and super-sensitive, and a charging travel case being the headline differentiators over the iO7. electricteeth.com's review of the iO line calls it 'a great toothbrush packed full of tech to help you brush better' while explicitly warning that 'only the most committed' buyers will get value out of the extra spend — a notably honest verdict from a high-trust specialist source. Reddit consensus on r/oralbtoothbrush echoes the split.
What reviewers liked
- Color interactive display and on-handle feedback praised in r/oralbtoothbrush threads
- Seven cleaning modes including tongue cleaning and super-sensitive give the most personalization in the iO mainstream lineup
- electricteeth.com (high trust) confirms strong cleaning performance and full dentist-recommended feature set
- Charging travel case and visible pressure sensor are well-regarded across YouTube reviews
Where it falls short
- electricteeth.com explicitly flags the brush as overpriced for most users
- r/DentalHygiene consensus is that real-time tracking does not improve cleaning outcomes vs. the iO5/iO7
- Amazon rating (4.4) trails the cheaper iO7 in this roundup
- Running costs are high — iO-compatible brush heads are among the priciest in the category
Across the reviewers we read, the iO9 Genius is the most fully loaded smart toothbrush in Oral-B's mainstream range, with the color interactive display, seven cleaning modes including tongue cleaning and super-sensitive, and a charging travel case being the headline differentiators over the iO7. electricteeth.com's review of the iO line calls it 'a great toothbrush packed full of tech to help you brush better' while explicitly warning that 'only the most committed' buyers will get value out of the extra spend — a notably honest verdict from a high-trust specialist source.
Reddit consensus on r/oralbtoothbrush echoes the split. One thread describes the iO9 as 'infinitely better' than previous electric brushes, while r/DentalHygiene posters argue the higher iO models 'track your brushing in real time but won't actually brush your teeth better' than a cheaper iO5 or iO7. The 4.4-star Amazon average across roughly 8,000 verified buyers supports the positive experience but is meaningfully below the iO7's 4.6, which is consistent with the 'too many features for the price' critique.
Where expert and community sources agree: build quality, app utility, and the interactive display are real, tangible upgrades; where they disagree: whether any of it improves dental outcomes. As a premium pick, it earns its place; as a value pick, multiple reviewers we read explicitly steer buyers downmarket.
- Switch to ORAL-B'S MOST ADVANCED TECHNOLOGY for 100% more plaque removal in just 1 week and even 4X more along the gumline vs a manual brush
- Get WHITEER TEETH from day 1 WITH iO DENTIST-INSPIRED ROUND BRUSH HEAD by removing surface stains
- FULLY MAXIMIZE YOUR COVERAGE thanks to our MOST INNOVATIVE A.I. POSITION DETECTION that tracks where you brush across all 3 surfaces of your teeth
- KEEP YOUR MOUTH HEALTHIER FOR LONGER! Join 8 out of 10 people that became better brushers thanks to iO PERSONALIZED GUIDANCE in just 1 week
- Experience Oral-B'S Smartest Brushing
- 7 clean modes and colored interactive display to track your brushing time and celebrate you for a great clean
I had both, iO7 has black and white screen, iO9 has colour screen and two more cleaning programs - tongue cleaning and super sensitive. If the ...
Technically speaking the iO is better at brushing as it has micro vibrations with its oscillation compared to the Genius which has pulsations.
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“Oral B iO Series 9 Full Review by Dentist” · Smart Electric Toothbrush ...
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