Brenda MillerElectric toothbrushes3 products
If you want the best tech, grab the iO5. For a sensible, no-nonsense clean that keeps your wallet happy, the iO2 is the clear winner for most folks.
Tech-savvy brushers
Minimalists
Budget-conscious buyers
| Feature | Oral-B iO5 | Oral-B iO3 | Oral-B iO2 |
|---|---|---|---|
| Price | £94.99 | £64.99 | £57.00 |
| Cleaning ModesThe iO5 gives you the most flexibility to tackle sensitive gums or extra plaque. | 5 modes (winner) | 3 modes | 3 modes |
| Battery LifeThe iO2 is the only one here that promises a solid month of brushing between charges. | Not listed | Not listed | Up to 4 weeks (winner) |
| Pressure SensorAll three have you covered to stop you from scrubbing your gums into oblivion. | Visible sensor | Smart pressure sensor | Automatic pressure sensor |
Tech-savvy brushers
This brush offers the most modes and app connectivity for those who love data. It is a solid choice if you want to track your brushing coverage.
Minimalists
A straightforward brush that gets the job done without extra fluff. It is a middle-ground option that focuses on the core cleaning tech.
Budget-conscious buyers
The iO2 is the sensible choice that skips the marketing noise. It is quiet, holds a charge for ages, and cleans just as well where it matters.
Let's be honest, you are brushing your teeth, not flying a plane. The iO5 packs in five modes and app connectivity, which is great if you are the type who needs a chart to remind you to brush the back molars. But for the rest of us, that's just more stuff that can go wrong.
The iO2 and iO3 strip things back to what actually matters. They both use the same vibrating, rotating heads that make your teeth feel like you just left the dentist. The iO2 in particular feels like a workhorse that doesn't need to show off to get the job done.
If there is one thing I cannot stand, it is a tool that spends more time on the charger than in my hand. The iO2 wins here by a landslide with its four-week battery life. The others might be fancy, but they'll be tethered to your bathroom outlet much more often.
If you want to save your pennies and get a reliable tool that lasts, buy the iO2. It does exactly what it says on the tin without the fuss.
If you are the type who needs an app to keep yourself disciplined, the iO5 is the only one that will keep you happy.
Prices on amazon.co.uk as of September 26, 2026. Prices may change.
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