Both devices run Android 2.3 and are powered by a 1GHz Snapdragon processor.
According to the manufacturer, the main goal with the Xperia family of phones "is to offer the most entertaining smartphones, and to do that with choice".
The manufacturer explained that both GSM phones will be available globally in selected markets starting in July.
In other news, new research has found that 38 per cent of all smartphones in Britain now run Google Android, compared to 35.9 per cent in France and 35.5 per cent in Germany.
Further to this, Android has a significant market share in Japan and America, with 58.3 per cent and 54.7 per cent respectively.
Compiled for Kantar Worldpanel ComTech, the figures show that Android's market share was up nearly 30 per cent year-on-year, while Apple's was down 16 per cent.
