Oral-B’s iO7 and iO9 were some of the first brushes to launch in the iO series, and addressed one of the biggest complaints that people have with electric toothbrushes – that they can be too harsh on teeth and gums. It did this with the introduction of micro vibrations, a technology which also made the brushes much quieter, too.
Like the rest of the iO series, from the iO2, the newest, cheapest (and best, according to our tech critic Steve Hogarty), to the top-of-the-range iO10 – they come with “AI brushing recognition technology”. In other words, there’s an accompanying app that tracks how you brush each zone of your mouth.
