It seems like the battery is lasting longer... I can't say for sure. Also it seems like the phone transitions from WiFi to 4g to 3g etc quicker than it used to, but again I have no way to tell for certain. One thing that is a fact. after going to .902 I noticed that the phone shuts off WiFi and switches to CDMA/LTE only, when you pick the phone up it turns WiFi back on. There isn't much of a delay and it hasn't been a problem and its probably saving me a lot of power. I don't remember it doing that before I just remember WiFi being on all the time.