The Xperia U was introduced in 2012 at the Mobile World Congress in Barcelona. It was the second smartphone released without the "Ericsson" portion in the name. The display size is 3.5 inches with a resolution of 854 x 480 pixels. It was first shipped with Android 2.3, but later updated to Android 4.0. The internal memory is relatively small with just 8GB and cannot be expanded with an SD card. There is, however, 50 GB cloud storage available. The Sony Xperia U had its market start in July 2012.