Multiplying a tiny number by a big number is still a tiny number. The power used by every iPhone in the world is like %0.001 of power used. That saving made b

Multiplying a tiny number by a big number is still a tiny number. The power used by every iPhone in the world is like %0.001 of power used. That saving made by Apple is just to pretend to look good - it doesn't actually make any difference.