Brenda MillerElectric toothbrushes3 products
If you want the best battery life and simplicity, go for the iO2. The iO5 is for those who like app feedback, while the iO3 is a solid middle-ground choice for a standard clean.
Data-driven brushers
No-nonsense cleaners
Value and battery seekers
| Feature | Oral-B iO5 | Oral-B iO3 | Oral-B iO2 |
|---|---|---|---|
| Price | £89.99 | £59.99 | £39.99 |
| Battery LifeThe iO2 leaves the others in the dust with a battery that lasts four times longer. | Up to 1.5 weeks | Up to 1 week | Up to 4 weeks (winner) |
| Cleaning ModesThe iO5 offers the most variety if you like to fiddle with different cleaning settings. | 5 modes (winner) | 3 modes | 3 modes |
| Smart FeaturesThe iO5 is the only one here that tries to coach you through a smartphone app. | AI tracking and app connectivity (winner) | Lightring timer | Simple pressure sensor and timer |
Data-driven brushers
A high-tech option that tracks your brushing via an app. It is great for those who want to ensure they never miss a spot.
No-nonsense cleaners
A reliable, straightforward brush that does exactly what it needs to do. It omits the app for a simpler, effective routine.
Value and battery seekers
The most practical choice of the bunch, offering a fantastic four-week battery life. It is simple, quiet, and gets the job done well.
When it comes to these three, you are really choosing between how much tech you want in your bathroom. The iO5 is the gadget-lover's choice, connecting to your phone to tell you if you are missing spots. It is clever, sure, but some folks just want to brush their teeth and get on with their day without checking an app.
The iO3 and iO2 scale things back. They stick to the essentials: a good motor, a round head that actually reaches where it needs to, and a pressure sensor to keep you from scrubbing your gums into oblivion. If you ask me, a toothbrush should be a tool, not another device that needs a software update.
The standout here is the battery life. While the iO5 and iO3 will have you tethered to a two-pin socket every week or so, the iO2 manages to last an entire month on one charge. That is the kind of durability I can get behind. Save your kitchen counter space and skip the frequent charging rituals.
If you are looking for a reliable tool that won't let you down, the iO2 is the clear winner for most folks. It is efficient, lasts ages, and doesn't complicate your morning with apps. Choose the iO5 only if you really need the digital feedback to improve your technique.
For the budget-conscious who want a solid clean, the iO2 is the best value pick hands down.
Prices on amazon.co.uk as of October 29, 2026. Prices may change.
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