Following on from its introduction of the Xperia Z1S and Xperia Z1 Compact smartphones at CES, Sony has introduced two additional devices to compliment the Xperia range. The Xperia T2 Ultra and the Xperia E1 are built with relatively modest specifications and look like they will be aimed at the lower entry level smartphone market rather than those looking for a powerhouse device to compete with the best of Android.