My girlfriend has a sonic toothbrush by Philips HealthyWhite and have these also tested with an additional head, now I have the DiamondClean fetched as this was in the offers and with this'm also completely satisfied, the processing is class but feels they, in my opinion too easy to, they could still weigh a few grams more and to download the glass and the travel case is working properly.
The point deduction, there is only because I am not satisfied with the Diamond brush head because I use rather the heads of HealthyWhite these are much more pleasant for brushing