I've used an S3 frontier for almost two years now. I like it a lot but in the last week, the battery started to drain so fast. It is going from 100% to 50% in 6 hours and to zero in 8 hrs. It used to last for al least two days long. I've read several solutions on this site but none of them have worked. Have reset the watch, turn the sensors off, location off partially restored and nothing seems to be working. Checking the app on the phone noticed the Samsung health app is consuming between 15-20% of the battery. Done any possible twist around this but no luck. Hope someone on this blog can help. Don't know what else to try now.
