I bought this phone for my wife and one thing is for sure, the battery life rocks. The android version I got was Lollipop which is fair enough, moreover the little developed android by Asus itself is also over commendable. The phone by far have never seen by my wife getting lagged my daughter plays all the games she likes on it, my wife watches videos, songs all day long. And phone stays up for 3 to 4 days long. Moreover I have got an OTG cable with this phone I charge my little phone thru this. T