 This device has a 42 h endurance rating.The device initially ran on Android 4.1.1 (Jelly Bean) but has now been updated to 4.1.2.Other features include Samsung's TouchWiz Skin, ChatON instant messaging, Smart alert, Buddy Photo Share, Pop-Up Play, S Suggest, S Voice, Smart Stay, Video Hub, Game Hub 2.0, and the S Beam technology (S Beam only available on special NFC edition, GT-I8190N).