Samsung Gear S3 frontier (R765A) - Battery Life - AT&T
Samsung Gear S3 - 10 Tips to increase battery life of your smart watch! - YouTube
Samsung Gear S3 Frontier review: Lots of features, not enough apps | Engadget
Samsung Gear S3 – S Health, Fitness Tracking, Battery Life and Verdict Review | Trusted Reviews
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