Samsung is pushing another Gear S3 update to take care of the battery drain - GSMArena.com news
Samsung Gear S3 review: A chunky but top-notch smartwatch
Battery life on Gear S3 Frontier - how many days of ussage it offers? - YouTube
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