@Lokifish_Marz I’ve tried with Wifi - turns off when watch sleep.
I’ve tried BT tethering with m2d notifications, barely a day (just reading notifications), and also getting double or even triple same notifications from whatsapp and/or groups)
I’ve tried turning off airplane mode, and use only BT tethering, same thing.
I’ve done factory reset as i think You said it can suppress drain battery with BT? didn’t work.
The best option I think would be WIFI on, with airplane mode on so it doesn’t drain the battery with constantly searching for signal, and use phone’s hotspot. Only problem is, I can’t seem to get WIFI to stay awake after watch “sleeps”…
I have found using “Off screen automatically disconnect” function in the “power saving” settings helps. What it does is turn off WiFi when the screen is off. I found it saves battery. Also make sure you check out the battery history and some programs I have tried are battery hogs, though they were convenient they were not worth the amount of power they used.