I clean for years with Braun electric toothbrushes my teeth. This is great in the hand, can be super via mobile app regarding brushing time, adjust vibration (on / off) or signal light (on / off). Unfortunately the SmartGuide can not constitute 6 quadrant, which can be in the app but control and represent, adjust. I brush my teeth more intense than before, and if I want to see only a winking smiley in SmartGuide.
Charging takes approximately 1 x per week, depending on the brushing time (in my case about 2 x 3 minutes a day).
Unfortunately, the second handpiece no charging station is mitgliefert. But the "old" chargers are suitable as well, only the charging current is a few mA apart.