High Quality Content by WIKIPEDIA articles! The Sony Ericsson Xperia X8 is a mid-range 3G Android smart phone developed by Sony Ericsson in the Xperia series in released in Q4 2010. It is sold in many countries worldwide, including the United States on AT T Mobility and low-end pay-monthly contracts in the UK. It originally shipped running Android 1.6 but was upgraded in early 2011 to Android 2.1.