[PCMag] Sony on Tuesday announced the U.S. retail availability of the SmartWatch 2 and two new waterproof Xperia smartphones available as unlocked devices, the Xperia Z Ultra and Xperia Z1. The electronics giant’s second-generation smartwatch is compatible with any Android smartphone running Android 4.0 or later. Sony is selling the SmartWatch 2 for $199.95 at […]