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The iO5 sits in the middle of Oral-B’s range, and it’s the point where the iO turns “smart.” It connects to the Oral-B app, estimates where in your mouth you’re brushing, and shows you the zones you’ve missed. Everything else about the cleaning is the same as the iO3 and the iO9: same magnetic motor, same heads.
What you get over the iO3
- Five modes instead of three, adding Intense Clean and a Super Sensitive setting to Daily Clean, Sensitive and Whitening.
- App connectivity with position detection. The brush uses motion sensing to map your mouth into zones and colour them in as you go.
- A smarter pressure ring that signals more than just “too hard.”
- A travel case and Oral-B’s faster magnetic charger.
What you don’t get: the iO9’s colour display and charging case.
Is the tracking useful?
In the first few weeks, genuinely. Most people discover a consistent blind spot, often the inside of the lower front teeth or the back of the last molars. Once you know, you fix it. After that, most owners stop opening the app, and the iO5 becomes an iO3 with extra modes. That’s fine, but price it accordingly.
| Cleaning action | Oscillating-rotating with magnetic iO drive |
|---|---|
| Brushing modes | 5 (Daily Clean, Whiten, Super Sensitive, Sensitive, Intense) |
| Intensity levels | 1 |
| Pressure sensor | Smart sensor: warns of too much and too little pressure |
| Timer | Light-ring timer, head-change alert |
| Battery (brand figure) | About 2 weeks |
| Charging | Magnetic charger |
| Travel case | Yes |
| App | Yes, tracks where you brush |
| ADA Seal | Not stated on listing |
| Brush heads | iO heads |
| Warranty | 2 years |
| Status | Current |
| Model number (US listing) | iO G5.1A6.1K |
| On Amazon US since | July 2022 |
| Amazon US check | Sold by Amazon.com (Oct 30, 2026) |
Handle Replacement heads
* Partly estimated: the handle had no main Amazon offer, the exact head wasn’t on sale, or only a reseller listed heads.
Who it’s for
The iO5 makes sense if you want feedback and are honest that you’d ignore a $200 premium on a screen. It also suits whitening-focused brushers, thanks to the Whitening mode and a Radiant White head.
If you’re cross-shopping something different at this price, the Laifen Wave Pro offers far longer battery life and a different motion. We compare them in Laifen Wave Pro vs iO5.
Unboxing on Amazon US
The iO5 we track (ASIN B0B5YR3R5H, model iO G5.1A6.1K, white) comes with the handle, one Ultimate White head, a travel case and a charger, and it was about $120 from Amazon.com on October 30, 2026. It has been listed since July 2022, so it’s a well-known quantity.
Five modes, and the two you’ll use
Daily Clean, Whiten, Super Sensitive, Sensitive and Intense. Most people live on Daily Clean and drop to Sensitive or Super Sensitive when their gums are irritated. Intense is for people who build up tartar fast; Whiten is a polishing pattern that helps with surface stains but doesn’t change your natural shade.
The app, after the first month
The app shows where you’ve brushed and where you’ve rushed. Most people learn the same two lessons in the first fortnight: they skip the inside of the lower front teeth and they barely touch the back molars. Once you know that, you can stop opening the app and keep the habit. That makes the iO5 a good brush for a learning period, and a slightly expensive one if you never open the app at all.
Pressure: too hard and just right
The iO5’s sensor uses its light ring to show when your pressure is right and to warn you when it’s too high. Like the iO3, the light sits where you can see it in the mirror, which is the most useful feedback any brush gives.
The cost of owning it
With one head in the box and iO heads at about $10.20 each, three years come to about $230. That’s about $20 more than the iO3 bundle, for the extra modes, the app and a case.
iO5 or Sonicare 7300?
Both are app brushes with a travel case. The 7300 is about $20 more, ships with three heads, has a light-ring pressure warning, a case that charges the brush and a battery rated at up to 21 days. If you like sonic brushing, the 7300 is the better package. If you like Oral-B, the iO5 is the cheapest iO with an app.
Setting up the app in five minutes
Install the Oral-B app, turn on Bluetooth, and switch the brush on near your phone; it pairs from there. Do one session with the phone propped in front of you and look at the map afterwards. That first map is the most useful thing the app will ever show you, so read it properly: the blank areas are where you’ve been skipping for years.
A good smart brush at a reasonable price, held back only by the fact that the smart part matters for a few weeks and the price difference matters for years. Buy it for the tracking or don’t buy it.
Worth putting beside it
Every line is the iO5 subtracted from the other brush, using our Oct 30, 2026 prices. None of it is an impression of the brands.
Oral-B iO Series 3
about $110 on Oct 30, 2026
- $10 cheaper up front
- no app
Oral-B iO Series 9
- $100 dearer up front
- about $69 more over three years
Philips Sonicare 7300
about $140 on Oct 30, 2026
- 7 more days per charge
- $20 dearer up front
- about $36 more over three years
Do I need the app and the sensors?
Most people open it for a week. The models that carry an app are worth buying for the extra modes, the charging case and the quieter drive, and you can treat the tracking as a free extra.
What we checkedThe iO9 maps 16 zones and the 7300 tracks brushing too, but both clean with the same heads and the same motors as the cheaper handles in their own ranges.
Our pick for thisPhilips Sonicare 7300Price
Is a $380 brush actually better than a $50 one?
Not at cleaning. Past a pressure warning and a timer you are paying for a quieter motor, a screen, a charging case and an app. Those are nice. They do not remove more plaque.
What we checkedThe $50 Pro 1000 and the $380 Prestige 9900 use the same two ideas: move the bristles faster than a hand can, and stop you pressing.
Our pick for thisOral-B Pro 1000Price
Asked and answered
The iO5 adds two extra modes, app connectivity with position detection, a smarter pressure ring and a travel case. Cleaning is the same.
Does the iO5 have a screen?
No. Displays start on higher iO models.
Do I need the app to use the iO5?
No. It works as a normal electric toothbrush without pairing.
Does the iO5 remind you to change the head?
Yes. The light ring gives a head-change alert, and the app tracks it too.
Is the iO5 worth it over the iO3?
Only if you’ll use the app or the extra modes. For cleaning alone, the iO3 is the same brush for less.
