I never thought I'd see another phone - especially an Android phone - rival the battery life I get from my BlackBerry Passport...but this little guy is pretty damn close. I've only had it a week, but now that it's settled in on 5.0.2, I think I could easily get a couple days....it's been off the charger today for 12 hours and I've still got 76% remaining, GSam is showing about a 2.0%/h drain rate. Not too shabby