Same problem here only had this watch 3 months. Frontier S3. Updated Monday night and left on charge till Tuesday morning by 12pm Tuesday is was down to 45% and dead by 3pm the watch normally lasts me 3-4 days. This is a disaster Samsung it needs fixing asap.
My watch showed 100% despite already 1 hour usage. Will see how the day goes
UPDATE: after 10 hours plus, I still hve 72% left. For, this is quite normal for me as my watch usually can last 2 to 3 days.
Same here. Performed a reset and that helped a little but nowhere near the battery life I was getting before the update. I went from about 3 days before the update to barely 2 days, so I'm faring better than others here.
When I don't charge the battery overnight, the battery drains about 12%. Previously it was 5-6%.
I wish I hadn't updated since all I notice is a cosmetic changes.
Hopefully Samsung is looking into this.