Something is rapidly draining the battery of my Gear S3 Frontier - Page 7 - Samsung Community
How to Temporarily Fix the Battery Drain Issue on the Gear S3 and Gear Sport
Samsung Gear S3 battery drain problem fixed with latest update - PhoneArena
Not every day you see a Gear S3 Frontier in the wild. I repaired mine! They had faulty charging issues and they would overheat the batteries. : r/GalaxyWatch