The Pebble was the best smartwatch design and they fumbled it so hard.
If you still have or can get hold of one, there's a community project to keep them running. Much easier on Android than iOS.
There are also a fair few repair and workaround guides for common hardware faults.
I sort of moved on after My P2 rubber buttons eroded away. It happened to a lot of people and there are even 3d printed replacements I considered. I ended up going with a Amazefit for my next smartwatch and hated it. I eventually just settled for a Casio G-Shock square. Anymore I just need a watch that tells me the time and can set an alarm when I occasionally need it. I'm mostly stationary at my computer so I don't need a whole lot anymore. The idea of smartwatches are still neat though.
Throw in the Steel Battalion controller for the original Xbox and you'll be really cooking.