The io10 is smart, cleans your teeth much better than previous models, however, if this is shared by a family, a way to differentiate which head belongs to which family member has not been thought through.  You can not add the colour coded bands as on previous models nor do oral b provide or sell a head holder which is not ideal for a family.  Not great for such an expensive product hence dropping 1 star.

Thank you for this excellent product, a smart device that gives details after use. I am happy to use your product, and I hope it will not be the last one

A big improvement on the previous model..Very easy to use particularly liked the new timer Excellent