Your dentist will love you if you shop these Prime Day electric toothbrush deals – here are the 5 best I've found

This deal offers a great low price on a solid, simple electric toothbrush with a built-in two-minute timer from Oral-B. It's an oscillating brush head rather than a sonic vibrating brush, but don't let that put you off; our sonic vs rotating toothbrush match-up found oscillating brush heads slightly more effective than the simpler sonic variety.

This Oral-B iO Series 9 deal brings the powerful, premium toothbrush with AI position detection down to nearly its lowest-ever price (which was $199 during Prime Day 2022). Sure, it's still pricey, but there's a reason it scored 4.5 stars in our review. You get a high-performing, oscillating, pressure-sensitive brush head and quick charge for nearly $100 off. Best of all, it's bundled with three extra heads as well.

There's a smooth 25% on this sustainability-focused electric toothbrush from B-Corp certified Suri at Amazon that's worth checking out. Scoring an impressive 4.5 stars in our full review thanks to its lengthy battery life and clever cleaning case, this is a deal worth chewing over.

Is the iO Series 9 too dear for you? Get the Series 5 instead, which has many of the same features and is also bundled with a trio of toothbrush heads without AI position detection smarts. Plus, it comes with a travel case.

Let's take a second to be real, first; this isn't as big of a saving as it looks. The iO9 barely ever retails at its full £500 price point, more often at £250, so in actuality this is just a £50 saving. However, it's still a great value price for one of the top toothbrushes around, and comes bundled with ample accessories.

You can also save 25% on a toothbrush with sustainability in mind, with B-Corp-certified Suri's electric toothbrush. It's stylish, but built to be less wasteful; though that comes at the cost of an oscillating brush head. Still, we scored this eco-conscious toothbrush a commendable 4.5 stars in our full review. Replacements aren't hard to come by, as retailers like Amazon and Boots sell multi-packs of the toothbrush heads.

Once again (spotting a toothy trend, here?) this isn't quite the saving it seems; the iO3 typically retails for around £100, but a £40 saving is still nothing to sniff at, and this is the lowest price we've ever seen for this brush. This is the brush I personally use at home, and I'm a big fan; it's a few years old but retains the newer toothbrushes' micro-vibrating bristles and pressure sensors.

You know the drill by now; for most of last year, this brush generally retailed around £190, but in 2025 it's more often been £130. While its £112.99 discount price seems much less impressive at that scale, it's unlikely this product could sell for much less; we scored it 4.5-stars in our Oral-B iO Series 6 review for its whisper-quiet motor, excellent performance and helpful companion app.

Record-low: In a return to its lowest-ever price we first saw over Black Friday last year, this brush is as smooth and glossy as your teeth will be after a good cleaning. However, in reality this product rarely retails for £549; instead, it typically costs roughly £250. In our review we awarded it 4 stars for its real-time brushing feedback and travel-friendly build. Though we'd admit that this model heavily relies on its accompanying app, it doesn't take away from its customizable brushing experience and this mega price cut.