It is a music-focused smart phone running Android 2.3 (Gingerbread customized with Sony Ericsson's four-corner UI), powered by a 1 GHz processor.

The phone measures 56.5 x 106 x 14.2 mm and weighs 115g, making it slightly taller and heavier than the Xperia mini but its specs are similar.

Some units of this phone made a slight hissing noise when connected to an external audio amplifier.

The device is compatible with Android 4.0 (Ice Cream Sandwich), and Sony released an official update to 4.0 for unlocked units in early June 2012.

xLOUD audio enhancement, which boosts the volume of the music and notifications[3] and improves speaker performance.