But! Now, two months after the end of warranty the battery lasts only for brushing 2-3 times. Even for a short weekend vacation then you have to bring the AC adapter. The battery can be extended, but only to him to dispose of environmentally friendly. Oral-B, there is no substitute.
Since I do not think much of this product and sales policy, the product gets only one point. Not least because the manufacturer on the toothbrushes already has an integrated sales with its existing customers. And all two years to buy a toothbrush again when the actual cleaning function is yet to be completely, has nothing to do with sustainability. For 120 euros I would like to conclude no subscription, in which I have to pay every two years again 120 euros to have a fully functioning device.
I'll take the chance now and test one device to the competitor.