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Oral-B iO 9
The full iO experience for just $20 more than the iO 7
Check the price on Amazon- 7 modes, color display, 16-zone 3D tracking
- 4 brush heads and a charging travel case included
- The most-reviewed iO on Amazon.com (8,191 ratings)
Other options
Our pick: the Oral-B iO 9, because it’s only $20 more than the iO 7 at $249.99, includes 4 brush heads and a charging travel case, and is the most-reviewed iO on Amazon.com (4.3/5 from 8,191 ratings, sold by Amazon, checked October 21, 2026). If you don’t need a display, the iO 5 at $149.99 is the best value with app tracking.
What does the extra money actually buy?
Every Oral-B iO uses the same round head and micro-vibrations. What changes from one model to the next are the extras: number of modes, the display, zone tracking and the travel case.
- Switching from a manual brush: the iO 2 at $59.99 has 3 modes, including super-sensitive, an automatic pressure sensor and a 2-minute timer.
- App tracking without a display: the iO 5 at $149.99 has 5 modes, a light-ring timer, a visible pressure sensor, app tracking, 3 brush heads and a travel case.
- A display on the handle: the iO 7 at $229.99 adds a black-and-white display and 5 modes, with 6-zone tracking in the app, according to ElectricTeeth.
- Everything: the iO 9 at $249.99 adds a color display, 7 modes, 16-zone 3D tracking and a charging travel case, per ElectricTeeth, plus 4 brush heads in the box.
- For your face rather than your teeth: see our facial cleansing brush guide or are LED face masks worth it?
Four Oral-B iO models side by side
Prices, ratings and stock checked on Amazon.com on October 21, 2026; specs as published by Amazon.com and ElectricTeeth.
| Model | Price (Oct 21, 2026) | Amazon.com rating | Modes · tracking | Verdict |
|---|---|---|---|---|
| Oral-B iO 2 (dark blue) | $59.99 | 4.3/5 (3,204 ratings) | 3 modes · pressure sensor, no display | Best budget ✅ · See on Amazon |
| Oral-B iO 5 Limited (3 brush heads, case) | $149.99 | 4.4/5 (4,500 ratings) | 5 modes · app, light ring, no display | Best value · See on Amazon |
| Oral-B iO 7 (2 brush heads, case) | $229.99 | 4.5/5 (3,549 ratings) | 5 modes · black-and-white display, 6-zone tracking | Best rated · See on Amazon |
| Oral-B iO 9 (4 brush heads, charging case) | $249.99 | 4.3/5 (8,191 ratings) | 7 modes · color display, 16-zone 3D tracking | Our pick ✅ · See on Amazon |
Prices, ratings and review counts checked on Amazon.com on October 21, 2026, for delivery to a New York ZIP code: all four in stock, sold and shipped by Amazon.com. Specs come from each model’s Amazon.com listing and from ElectricTeeth; we did not measure them.
What reviews don’t tell you: the five-year cost
Putting the Amazon.com listings next to Test-Achats’ lab test and ElectricTeeth’s comparison brings out three points that none of them highlights on its own.
| Model | Brush | Extra heads to buy | Five-year total |
|---|---|---|---|
| iO 2 | $59.99 | 19 × $7.25 | $197.74 |
| iO 5 | $149.99 | 17 × $7.25 | $273.24 |
| iO 7 | $229.99 | 18 × $7.25 | $360.49 |
| iO 9 | $249.99 | 16 × $7.25 | $365.99 |
Our math from October 21, 2026: 20 brush heads over 5 years (one every 3 months, as Oral-B recommends), at $7.25 each in the 4-pack of iO Ultimate Clean heads ($29.00), minus the heads listed in each offer’s title.
- Brush heads cost as much as the brush. Whatever handle you pick, 20 heads over five years add up to about $145: from about 32% (iO 9) to 70% (iO 2) of the five-year total.
- The iO 9 almost pays for its upgrade. Because it comes with 4 heads instead of 2, the iO 9 ends up just $5.50 more than the iO 7 over five years. Versus the iO 2, it’s $168.25 more, or $2.80 a month.
- No source shows better brushing at $249.99. Test-Achats, the Belgian consumer group (December 18, 2025, 12 models, two labs and 30 volunteers), found that the difference between brushes isn’t in the quality of their brushing and that price climbs mainly with tech features. ElectricTeeth (October 5, 2026) says iO models “clean as well as each other.” What the iO 9 buys you is coaching and convenience, and at $20 over the iO 7, that’s an easy yes.
Three budgets, three picks
- Best overall: Oral-B iO 9, $249.99. 7 modes, 16-zone 3D tracking, color display, charging travel case and 4 brush heads, sold by Amazon.
- Best value: Oral-B iO 5, $149.99. 4.4/5 from 4,500 ratings, 5 modes, app tracking, 3 brush heads and a travel case; no display.
- Best budget: Oral-B iO 2, $59.99. 4.3/5 from 3,204 ratings, 3 modes including super-sensitive, automatic pressure sensor; no display.
Who should skip it
- If you’ll never open the app: 16-zone tracking is the iO 9’s big extra. ElectricTeeth notes you only benefit from smart features if you use them; in that case, the iO 5 or iO 2 brushes the same way.
- If you weren’t planning on refills: iO handles take iO heads only (4-pack on Amazon), about $29.00 a year at 4 heads.
1. We compare the day’s price and rating, with the number of reviews.
2. We work out the five-year cost, brush heads included.
3. We cross-check listings, an independent lab test and a comparison site.
To go with your toothbrush, read whether a water flosser is worth it.
Want to clean between your teeth too? Read water flosser vs interdental brush: which one to choose.
FAQ
Which Oral-B iO should I buy?
The Oral-B iO 9 at $249.99 on October 21, 2026: 4.3/5 from 8,191 Amazon.com ratings, sold by Amazon, with 7 modes, a color display, 16-zone tracking, a charging travel case and 4 brush heads. It’s only $20 more than the iO 7. The iO 5 at $149.99 is the best value, and the iO 2 at $59.99 is the best way to start.
Does the Oral-B iO 9 clean better than the iO 7?
No source we read shows that. ElectricTeeth says iO models “clean as well as each other” and that the extra modes don’t change the result. The iO 9 adds 16-zone tracking (6 on the iO 7), 2 more modes, a color display and a charging travel case.
How much do Oral-B iO brush heads cost?
The 4-pack of iO Ultimate Clean heads cost $29.00 on October 21, 2026, or $7.25 a head. Oral-B recommends a new head every 3 months, so 4 a year: about $29.00 a year, whichever handle you own.
Which Oral-B iO is best for sensitive gums or beginners?
The iO 2 at $59.99: it starts on the super-sensitive setting, and its automatic pressure sensor slows down and lights red when you brush too hard, per its Amazon.com listing. If your gums bleed or hurt, see a dentist; a toothbrush doesn’t treat anything.
Is the iO 9 worth it over the iO 5?
If you want the display and 3D tracking, yes: it costs $100 more upfront and about $93 more over five years with brush heads. If you just want a great clean with app coaching, the iO 5 does the job.
Our verdict
Our pick: the Oral-B iO 9, because it’s only $20 more than the iO 7 at $249.99, includes 4 brush heads and a charging travel case, and is the most-reviewed iO on Amazon.com (4.3/5 from 8,191 ratings, sold by Amazon, checked October 21, 2026). It’s for anyone who wants the full iO experience: color display, 7 modes and 3D coaching. The iO 5 at $149.99 is the smart value pick, and the iO 2 at $59.99 is the perfect first electric brush. Before Black Friday, keep these prices as the ones to beat: see our Black Friday 2026 beauty device deals. All our picks: Our picks.