It’s either a battery needing replacing (meaning replacement Watch via AppleCare) or a brand new watch. Or just certain apps are really causing issues. This whole thing is very peculiar. My series 8 with a whole bunch of random third party apps never had an issue with the 10.1 update and same with 10.1.1 battery life is still solid at 91% battery health.
It’s either a battery needing replacing (meaning replacement Watch via AppleCare) or a brand new watch. Or just certain apps are really causing issues. This whole thing is very peculiar. My series 8 with a whole bunch of random third party apps never had an issue with the 10.1 update and same with 10.1.1 battery life is still solid at 91% battery health.