The watch is very complicated thing it can be everything and if it's being used through your phone or somebody just try to be with your family there I'm never going away to have like resolution equivalent Einstein I guess cuz they got me big time
I have the same issue. I think it has something to do with how it learns your "usage patterns". When I first got the watch, it would last up to almost 3 days (I have SH enabled but maximized power saving settings everywhere else). Then it would lose up to 50% battery at night. During the day no problem. I reset the watch and it was back to normal for 3 days. Then it got worse.
