Bangle.js power-saving feature proposal

I naively thought that BLE advertising was draining a not negligible current, which could be unnecessary when the watch is kept aside for long period of time, and thought that enabling/disabling BLE based on accelerometer motion events could save a bit of power but in the light of your explanation now it is clear that it is not a good idea and probably the accelerometer would consume more than the BLE advertising, overall.