All Sony smartphones have 2 things in common: they're always called Xperia and they run on the Android operating system. With every Sony Xperia device, you have access to millions of apps. On top of that, you can always recognize the sleek Xperia design. Do you want a waterproof casing, an extra large screen, or do you prefer to keep it compact? There are plenty of choices within the Xperia series. When you buy a separate device, you can use it with any provider.