The battery ran for 11 hours, 26 minutes in our video loop test which is pretty great. You can expect to get a full day of active usage from each charge, including games and a lot of Web browsing. 4G worked well for us and we had no problem with voice call quality either. I love this mobile some features. 1st 0% to100% charge in 2 hours 3 gb ram & good for use internet.