Use APKPure App
Get Battery Watcher old version APK for Android
The app gives you an opportunity to monitor BOTH battery, phone and wear.
Battery Watcher gives you an opportunity to monitor both battery levels, phone and wear watch.
You can find the battery level of the paired phone on your wear watch.
On the phone side, you can see the level of the wear watch .
As there are the residual quantity of the battery of oneself in a chart each,
you may predict running out of battery graphically.