Some Gear S3 and Sport Users Reporting Massive Battery Drain Issues
Samsung Original Replacement Battery Eb-br760abe For Samsung Gear S3 Frontier / Classic Smart Watch Sm-r760 Sm-r770 Sm-r765 - Mobile Phone Batteries - AliExpress
Samsung Gear S3 gets Wear OS [Gallery] - 9to5Google
Samsung Gear S3 review: giving a full-on phone-on-a-watch a third go - CNET
Latest Gear S3 Update Likely to Fix 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