Well guys, I have a short tip to solve that common problem on the SW2 (as far as I read). I have only tried it on my smartphone, but it worked and you could try just in case. You´ll need root for this. Don't worry, if it doesn't work for you, you can go back to normal easily.
In my case, my phone killed the smartwatch service and then it "revived". So I put the Low Memory Killer (LKM) (not sure if is that the English name, in Spanish it's called "Prefijos de Limpieza de Memoria") into a lower value that it had (depends of the phone). After that, my disconnections problems disappeared
To change it, I recommend use Kernel Adiutor, an awesome kernel tweaker.
I hope this works for you. Tell me your results. Peace
In my case, my phone killed the smartwatch service and then it "revived". So I put the Low Memory Killer (LKM) (not sure if is that the English name, in Spanish it's called "Prefijos de Limpieza de Memoria") into a lower value that it had (depends of the phone). After that, my disconnections problems disappeared
To change it, I recommend use Kernel Adiutor, an awesome kernel tweaker.
I hope this works for you. Tell me your results. Peace