The smallest among the Xperia NXT family, the Sony Xperia U comes with a 3.5-inch Realty Display and a more affordable price tag. Its transparent band has some interesting tricks up its sleeve too. What are they? Read on to find out more of this handy phone.

Sony Mobile Communications kickstarted MWC 2012 with a new name and a new NXT series, Xperia P and Xperia U. Here's a round up of the news and interesting developments at the annual mobile device trade show.