Before the last update my battery would easily last all day and night. I’d even have enough to keep it going until the afternoon. Since updating last night to watchOS 10.1.1, the battery on my Series 8 has been awful. I’ve not used GPS or cellular and had my phone with me all day. Anyone else had this issue? I know I only charged it to 88% this morning but I can’t remember the last time I had to top it up in the evening before a workout.
There have been multiple tests where people get a proper VO2 test done on the treadmill etc and it's pretty accurate. My Garmin watch says 49 and my Apple Watch says 45.4. I think the Apple Watch is probably more accurate as I've worn it for years whereas the Garmin is only a month old. The more runs you do, the more accurate it will be. Whilst I understand that it must be discouraging to be in that range, if you put the effort it, the only way is up :)