My watch has randomly started to drain. I cleared the cache and rebooted, which solved the drainage for a few days, but it started to do it again today. I have contacted samsung directly as the watch lags as well, and they're collecting it on Thursday to have a look at it to see whether it needs repairs. I've had to disable majority it the smart features to ensure I get through the day with the battery as I use it to track steps and calories burnt, but really, what is the point of having a smart watch and not be able to use all smart features without the watch dying within a few hours! If your watch is still under warranty, it's worth having it sent off and checked or taken to the nearest repairs shop.
