Sony launched its flagship Xperia S in March. Then the phone had been shipped to customers with outmoded software. Only the Xperia S has been updated to Android 4.0. Second was Xperia P, better than Xperia S. It is a mid-level smartphone that obviously will impress you. It was preloaded with Android 2.3. Next is Xperia U that is apparently no exception. This phone is presenting itself as an entry-level option. The Xperia U is one of latest products of the Sony’s NXT series that had been released this May.