I tried an electric toothbrush with its own futuristic self-cleaning smart hub for a week, and I don't feel any different

Apr 15, 2025

The Ultim8 is a basic sonic toothbrush that relies on its compatible SmartHub

TechRadar Verdict

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Ultim8 by Supermouth: One minute review

The Ultim8 by Supermouth toothbrush makes a lot of bold claims. For example, it says it’s the “first reinvention of the toothbrush in nearly a century”, with its unique ‘8’ shape and patented bristles designed to conform to the contours of your teeth.

The SmartHub, which is sold separately, is designed to house, charge and clean the brush with UV light, drying the bristles, and preventing bacteria from adhering to it by keeping it in a sealed environment. A travel case is also sold separately.

It all sounds very innovative, and the brush itself is inordinately pretty and well-designed. The battery lasts ages, the unit itself looks a lot better than most electric toothbrushes, with its swooping curves reminiscent of a spacecraft, and the magnetic charger is a really neat touch, although it’s USB-A rather than USB-C.