A good start for the Sony mobiles for this New Year. After the launch of successive smartphone under its Xperia lineup, the Japanese smartphone manufacturer has revealed a flagship device with both water and resistant. The device is named as Sony Xperia Z and it is to be one of the hottest devices in the month of January. It seems to be quite disappointing that the device runs on Android 4.1 Jelly Bean mobile operating system, instead of the latest Google operating system. But some of the close source has revealed that the company will soon launch the latest v4.2 Jelly Bean update after the launch of this smartphone.