Samsung Gear S3 Classic Review, unboxing, design, features, performance and battery life - 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
For Samsung Gear S3 Classic SM-R770 NEW EB-BR760ABE Battery Smart Watch+TOOL | eBay
Samsung Gear s3 Battery Life [Review] - YouTube
Amazon.com: LCLEBM 520mAh Battery for Samsung Gear S3 Frontier (SM-R760),Galaxy Gear S3 Classic Replacement Battery for SM-R770,BR760,R765,EB-BR760ABE Gear S3 Battery with Professional DIY Repair Tools : Cell Phones & Accessories
Samsung Gear S3 users reporting poor battery life post Tizen 3.0 update - GSMArena.com news