I have an io10. It is not worth it. The 3D Tracking does not work reliable for me.
The cleaning result seem to be good, but you can get that from a cheaper model too. io6 or something.
The new brush heads are expensive, but good imho.
Also the app only works for one person, sharing with different brushes does not work.
Battery is not replaceable.
Won’t buy again.
I have an io10. It is not worth it. The 3D Tracking does not work reliable for me. The cleaning result seem to be good, but you can get that from a cheaper model too. io6 or something. The new brush heads are expensive, but good imho. Also the app only works for one person, sharing with different brushes does not work. Battery is not replaceable. Won’t buy again.