I'm only getting around 8-10 hrs of battery life on my Galaxy watch 3, when the watch is in stand alone i.e. when I disconnect the watch from my phone (S21 Ultra).
I've tried factory restet using all possilbe ways, nothing helped. I've noticed that there are more people experiencing a smiliare problem.
according to specs:
Battery Capacity (mAh, Typical)
Typical Usage Time (Hours)
Over 43 Hours
Low Usage Time (Hours)
Up to 120 Hours
since you're done with reset
please contact customer care, so they can arrange an inspection/repair of your watch
smart watches have 24 months warranty from purchase
When the watch has its bluetooth disconnected from the phone it tries to reconnect to the phone using WiFi and/or 4G if it has it. Both the WiFi and 4G use quite a bit of power and turning these off or to Auto can increase battery life if they are not needed.
Yes I'm aware of that, but the problem is that I have turned off both wifi and 4G. I've noticed that turning the Bluetooth off on the watch prevents it from draining its battery quickly. The same goes if I activate airplane mode.