semmifon as much as i know..this shouldn’t do any work but very negligible battery life improvements…you don’t even notice… because if no connectivity there will be no msgs no app updates… and battery saver does things which sleep stand-by does all the time when turned on…
My cmf phone 1 gives like 10+ hours of sot…and stand-by battery drain is like 1-2% so i never tried these features…
