Im using Xiaomi T501, previously use Xiaomi T100

Xiaomi T100
- Failed after 6 months due to poor waterproofing.

Xiaomi T501
- Now using and pretty satisfied with it
- Got AI but I don't know how useful is it.
- After every brush can see the overall clean rating
- Weekly can see an overview
- Battery life easily last 3.5 months

Note: There are ultrasonic & rotating toothbrushes the one I'm using is ultrasonic. Which requires you to adapt to a new way of brushing (Let the brush do the work not your arm).