You might want to give the Amazfit Bip a go, it's as barebones as it gets. The only gripes I have with it is the craptastic app and the lack of vibration, it only has a beeper.
There's an open-source replacement app called gadgetbridge. (I'm not sure it works with the exact model you mention, but I did use it with a cheap Android watch from, iirc, Amazfit.)
abecedarius|3 years ago