Oral-B iO series: what each step up adds
Four iO handles compared from their own Amazon listings, from the $70 iO Series 2 to the $380 iO10. This is a comparison of listed features, not a lab test, and it covers only the four models whose listings we read.
Short answer. Every iO here has the round iO head and a pressure sensor, so the extra money buys modes and guidance, not a different brush. The iO Series 2 ($69.99) has 3 modes; the iO5 ($69.99) adds 5 modes and the Oral-B app; the iO7 ($229.99) adds a longer charge and two heads in the box; the iO10 ($379.99) adds a display and on-charger guidance.
Prices and availability read from Amazon on October 7, 2026 (iO Series 2 updated October 13, 2026) and change without notice. We earn a commission if you buy through our links, which costs you nothing and is the only way this site makes money.
| # | Model | Position | Defining feature | Price |
|---|---|---|---|---|
| 1 | Oral-B iO Series 2 Rechargeable Electric Toothbrush | Entry iO | 3 modes, automatic sensor | $69.99 |
| 2 | Oral-B iO5 Customizable Clean Rechargeable Electric Toothbrush | Mid iO | 5 modes, app | $149.99 |
| 3 | Oral-B iO Deep Clean + Protect, iO Series 7 | Upper-mid iO | 5 modes, app, 2-week charge | $229.99 |
| 4 | Oral-B iO10 Ultimate Clean Rechargeable Electric Toothbrush | Top iO | 7 modes, display, iOSENSE | $379.99 |
Oral-B iO Series 2 Rechargeable Electric Toothbrush
Entry iO
$69.99
The cheapest way into the iO line, without an app.
Strengths
- Sensor slows the brush automatically
- Travel case included
Trade-offs
- The listing mentions no app
Oral-B iO5 Customizable Clean Rechargeable Electric Toothbrush
Mid iO
$149.99
The first iO with the app and five modes.
Strengths
- Five modes and app tracking
- Light ring timer and head-change alert
Trade-offs
- Costs more than the iO Series 2
Oral-B iO Deep Clean + Protect, iO Series 7
Upper-mid iO
$229.99
An iO with app coverage tracking, a long charge and two heads in the box.
Strengths
- Charge of up to two weeks, per the listing
- Two refill heads included
Trade-offs
- Same five modes as the iO5, at a much higher price
Oral-B iO10 Ultimate Clean Rechargeable Electric Toothbrush
Top iO
$379.99
The top iO, with a display and a charger that shows guidance without the app.
Strengths
- Guidance on the charger, no phone needed
- Four brush heads included
Trade-offs
- Most expensive iO here
- Features beyond the sensor add cost, not proven cleaning
Which iO models have a pressure sensor?
All four listings describe one. The iO Series 2 listing says its sensor slows the speed and signals red when you brush too hard. The iO5, iO7 and iO10 listings say the iO pressure sensor signals if you brush too hard, too soft or just right. Neither description is a measured result; both are the brand’s own wording.
What do the extra dollars buy?
Going from the iO2 to the iO5 adds five cleaning modes instead of three, the Oral-B app tracking, a light ring timer and a head-change alert. The iO7 listing adds a charge of up to two weeks and two refill heads. The iO10 listing adds seven modes, an interactive display and the iOSENSE charger, which shows coverage, time and pressure guidance without opening the app.
Do iO heads fit other Oral-B handles?
No. The iO head listings say the heads are compatible with iO handles and not with Oral-B Pro, Smart or Genius handles. See the replacement heads guide before ordering refills.
What the ADA says about the iO series
The ADA lists the Oral-B iO Series among powered toothbrushes with its Seal of Acceptance. The listing is for the series by name, so confirm the exact model on ADA.org. Details are on our ADA Seal page.
Which iO if you only want the sensor?
The iO Series 2 is the cheapest handle here with a pressure sensor. If you do not need the app, extra modes or a display, the listings give no reason to pay more for the sensor itself.
Comparing brands instead? See Oral-B vs Sonicare.
How much more does each Oral-B iO step up cost?
From the Amazon listings we read on October 13, 2026: the iO Series 2 is $69.99 and the iO Series 7 is $229.99, a gap of $160.00. The iO5 was $69.99 and the iO10 $379.99 the same day. Confirm any price on the listing before you buy. Every one of the four listings describes a pressure sensor, so the extra money buys modes, guidance and accessories, not a different brush head. The iO Series 2 listing describes 3 modes, the iO5 and iO Series 7 describe 5 modes, and the iO10 describes 7 modes.
Which Oral-B iO models include the app?
Per the listings, the iO5 (5 modes) and the iO Series 7 (5 modes, charge up to 2 weeks) both describe Oral-B app brushing tracking. The iO10 lists 7 modes, an interactive display and the iOSENSE charger, which gives coverage, time and pressure guidance without opening the app. The iO Series 2 lists 3 modes and mentions no app. If you want guidance but no phone, the iO10 is the model that builds it into the charger; if you want the app at the lowest price, the iO5 is the entry. We have no readable price for either today. The iO Series 2 and iO Series 7 prices were read on October 13, 2026.
Which iO comes with the most brush heads?
The iO10 listing says 4 brush heads are included, and the iO Series 7 listing says 2 refill heads. Spare heads cost real money: an Oral-B iO Ultimate Clean 4-pack was $39.94 on October 13, 2026, and a Gentle Care 4-pack was $56.11. The iO Series 2 listing says it fits Ultimate Clean, Gentle Care and Radiant White heads. iO heads are listed as not compatible with Oral-B Pro, Smart or Genius handles, so the head cost is part of the price of choosing the iO line. The iO5 and iO Series 2 listings, as we read them, give no head count. Count the spare heads you will need over a year before comparing prices.
What is the cheapest Oral-B iO toothbrush?
Among the four listings we read, the iO Series 2 at $69.99. Its listing describes 3 modes, a sensor that slows the brush when you press too hard, and a travel case.
Does the Oral-B iO5 have an app?
Yes. The iO5 listing says the Oral-B app tracks how and where you brush in real time.
What is the difference between the iO7 and iO10?
Per the listings, the iO7 has five modes and a light ring timer; the iO10 has seven modes, an interactive display and the iOSENSE charger, and comes with four heads rather than two.
Which iO models are not covered here?
The iO3, iO4, iO6, iO8 and iO9. We could not read a listing for them, so we make no claim about them.