After the last Samsung Health update my wife and I started to experience rapid battery drain on our Galaxy Active 2 watches. The update was for our Android phones. After playing around with the settings and turning things off and on, we have discovered that the WiFi is the culprit. If we have it on it drains the battery so much that the watch doesn't last more than 6-7 hours. With it off, we can go 3 days without charging.
Obviously we can keep the Wi-Fi off and the problem is solved but it's annoying to think we don't have full functionality of a device we own. Anyone know how this issue can be fixed?