I regret updating the system . Also Battery  Icon look stupid I can't read Battery percentage clear as before..I don't know if formatting phone can help . Is anyone try that . Leave comment 

Sleep mode on Samsung watches is not practical. If you forget to turn it off after waking up, it will continue tracking sleep even if you are awake..Solution for this issue. When you go to sleep Just put your watch on turn off limited health features...

My old Galaxy watch gear S2 with Os Tizen calendar have buttons to moving between months. Hope add on wear Os . If you see this important please like to Samsung Hear the suggestion 

I have Watch 6 classic oneui eats battery even not using watch 4.1% no possible 

I think After upgrade to Oreo s7 edge. Battery life is poor not like before as nougat 7