My Gear S3 battery is draining like CRAZY since the One UI update! I took it off the power at 08.00hrs this morning and it went down to 20% by 12.00hrs (noon)!!! That's with the wifi OFF, with the gps OFF, with hardly any usage and with no apps running in the background! I am extremely disappointed with Samsung! Its ridiculous that this is still happening after all those complaints from thousands of users who faced similar issues following previous updates over the last few years! You would have thought they would have fixed it by now. But no. When I had this problem during an earlier update I found that installing an older version (from a third party website) of the Gear S plugin fixed the problem. It seems this new update has gotten rid of that earlier plugin and the new plugin is killing it. I tried re-installing the old plugin but it failed this time, so I suppose they've blocked it. I completely reset my watch now but I think nothing will change. If I have any improvement I will post it on here.
Anybody else facing the same problem? Any solutions???
As unpleasant as it was...I have RESET my watch and that seems to have resolved the battery drain (for now at least). I will let you know in case something changes, but I think its OK now. Suggest you give it a try.