Review: Sony Xperia Z for T-Mobile USA
Sony created a very nice smartphone with the Xperia Z. It's an attractive device that has top-class hardware and a long feature list to go with it. The Z was particularly impressive as a voice phone, and battery life was great. The device is water resistant as Sony claims, but the hatches needed to protect it from water are somewhat of a pain to use. The two-sided glass design means you have to be a bit more careful than you would with a plastic or metal phone, though.
In terms of the software, nearly every app and service worked well. The Xperia Z clearly has Sony's stamp on the Android operating system, but that's a good thing. I found the user interface to be flexible and quick; the camera software allows for plenty of shooting customizations; and the media options are endless. Toss in excellent performance from the camera, and a fine viewing experience on the beautiful screen, and the Z is a media powerhouse.
T-Mobile landed a winner with the Z, a solid competitor to the HTC One and Samsung Galaxy S4. If you're looking for an alternative to those models, the Z should be the one you consider.