Microsoft mobiles always known for their battery life and its true.
pretty good battery life over a day only 1 time charge.and the window mobile biggest plus point is that is is data saving.over a online exam of 3 hours it send only 3 to4 mb.and its true . its really amazing bcz in this there is not any background application working without reason and no data misuse . I am prefer it above samsung, sony, htc and othere many brands expect apple.people says window is hard to run but its quite simple and full secure in terms of android bcz no one know how to break numerical password .the pattern lock is easy to break in andoids.