The idea is you get meaningful feedback on how well you are brushing without having to refer to the smartphone application. I have a very strong feeling that the 2000, 3000 and the 6000 have the same speeds in Daily cleaning: 8800/40000.

Oral-B Electric Toothbrush Comparison (Chart Included) Oral-B Electric Toothbrush Comparison (Chart Included)

Pro Clean, and Whitening modes last longer than 2 minutes and the Tongue cleaning mode is shorter than this at just 20 seconds. The Series 4 comes in quite white, matte black and lavender compared to the quite white, matte black and pink of the Series 5. BUT, one of the biggest flaws of the Smart 5 is the fact that you can’t easily tell what cleaning mode you are using. If you turned the brush on (1 press) and use this mode, if you press it 3 more times it will turn the brush off.We are moving away from articulating the benefits of the technology from number of movements because the benefits we see with Oral-B iO come from a multitude of factors including the linear magnetic drive that delivers energy to the bristle tips, the increased density of filaments on our redesigned brush heads as well the synchronised cleaning action of oscillation rotation plus microvibrations. While the iO Series 9 has a rechargeable case that keeps the brush powered up while you're away from home, the Series 6 has something much simpler. There is nothing really stopping you using it to focus purely on the gums as an additional mode like you might do with a tongue cleaner.

Oral-B iO Series 5 Electric Toothbrush | Oral-B Oral-B iO Series 5 Electric Toothbrush | Oral-B

Both models offer most of the benefits of an electric toothbrush without having to pay ‘too’ much for them. The brush will default to the standard daily clean mode upon being switched on, unless you have a Genius or iO Series model, where it will use the mode previously selected on the handle. Although the iO10 has 16 zones tracking, the iO Sense stand is configured to give feedback on 6 zones. Do bear in mind that with the iO you don’t have the ability to charge the toothbrush in the case and replacement brush heads are more expensive.

The Series 9 comes with a power2go charging case that allows the iO to be charged inside whereas the Series 7 comes with a standard travel case.