Samsung Gear S3 Frontier Review: Why It's (Almost) the Best Smartwatch | Tom's Guide
Samsung Gear S3 Classic and Frontier: Extend Your Battery Life with These Battery Saving Tips - YouTube
Samsung Original Replacement Battery Eb-br760abe For Samsung Gear S3 Frontier / Classic Smart Watch Sm-r760 Sm-r770 Sm-r765 - Mobile Phone Batteries - AliExpress
Gear S3 update in Canada address battery life issue - SamMobile
Samsung Gear S3 classic (R775A) - Battery Life - AT&T
Just replaced my Gear S3 battery (24$ + 10$ for tools). Excited to get 3+ days back. Links in comments, will report back with new battery life in a few days. : r/GearS3