I'm a PineTime-user too, but be advised, that there is no sleep tracking, and the heartrate measurement is not passive, nor does it work in the background.

But if you want a simple watch for notifications, weather, time, step count, and a handy flashlight, with up to three weeks uptime with one charge, the pinetime is for you!

Also, you might want to consider joining the PineTime-Community, bring some life there! <3