The Blue Tooth connection is no problem. We see then, the same in which the 5 modes - clean, extra strong, whiten teeth, Zungennreinigung, gums. Then you will be rewarded after 2 minutes with a smiley face, that after a short time to show the time.
Overall, this toothbrush is very good - there are included also different brush heads so that they can be all by trial and error. A begelegtes, transparant travel case is very practically,.
Through the Bluetooth feature, you can check its own grooming behavior and get a better feel for the time that is required for thorough cleaning.
Overall I am very pleased with the brush to have tried even without the app function.
Overall, I think the price is excessive - over 200 for a toothbrush? No matter how high-tech and excellent it may be - that seems to me exaggerated. Therefore, the manufacturer should still working on pricing - and downwards. That is my only criticism of this excellent product. Therefore only 4 stars.