When I picked up the Oral-B iO3 Electric Toothbrush, I was not expecting it to quietly become part of my daily routine in a way that actually felt enjoyable.

If you are serious about your oral health, chances are you have come across the Philips Sonicare DiamondClean Smart 9400. It sits right at the premium end of the best electric toothbrush market, promising smart features, superior cleaning and a polished user experience. But with a price tag that makes many people pause, the big question is simple: does it genuinely deliver enough to justify the cost?

This in-depth review explores everything you need to know, from daily performance to long term usability, so you can decide whether this high end toothbrush deserves a place in your bathroom.

The Oral-B iO8 sits firmly at the premium end of the market, promising smarter brushing through artificial intelligence, sleek design and a noticeably more refined cleaning experience.

The Philips 5500 aims to strike a balance between all of these needs. It promises gentle but effective cleaning, smart features without unnecessary complexity, and a design that works just as well at home as it does on the go

Curious about Oral-B’s iO5 electric toothbrush? We’ve tested it rigorously over the last few weeks to see if the brand’s mid-range smart brush is worth picking up.

But when it comes to Philips’ range of brushes, one of my favourites and one that delivered some of the best results was the Sonicare DiamondClean 9000.

I’ve tested dozens of dental products over the years, including some of the best electric toothbrushes available in the UK, and despite all that, the Oral-B Genius X remains one of my favourites.

Honest Laifen Wave Pro review. A powerful, premium electric toothbrush with a unique hybrid brushing motion. Is it actually worth it?

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On the hunt for a new electric toothbrush? We’re glad to hear you want to level up your dental care, and we’re here to help guide you to the perfect brush that’s going to keep your pearly whites clean, plaque-free and back to looking their best. 

We round up some of our top picks if you’re looking for an electric toothbrush at a reasonable price.

Our expert review of the Laifen Wave Electric Toothbrush - The most powerful electric toothbrush there is.

A expert dentist-led review of the best electric toothbrushes to buy in 2026.

We have rounded up the entire Oral-B Range to explain the differences between them and what brush is perfect for you.

Our expert review of the Oral-B iO10 Electric Toothbrush. Oral-B’s most premium electric toothbrush.

Our expert review of the Philips Sonicare DiamondClean 9900 Prestige. Philips’ most premium electric toothbrush.

An expert dentist-led review of the best water flosser to buy in 2025.

Our expert review of the SURI 2.0 sustainable toothbrush.