Samsung Gear S3 review: Big on battery, iPhone compatible and looks more like a watch | HT Tech
Here's the temporary fix to the Gear S3 and Gear Sport battery drain issue
Samsung Gear S3 battery drain bug returns for some users - 9to5Google
How to Fix a Gear S3 Battery Drain
Some Gear S3 and Sport Users Reporting Massive Battery Drain Issues
So after I updated to the latest firmware I got extreme battery drain like from 100% to dead within an hour even after replacing the battery. HR sensor is dead wont turn