Engadget - The Xperia Z proves that Sony has what it takes to make a compelling phone in an increasingly competitive market, but issues like battery life need to be confronted, even at the expense of the design.
Sony turned it all around with the Xperia Z5, making up for the lacklustre Sony Xperia Z3+ with a far more stable phone, which also benefitted from a fingerprint scanner and a new camera.
Sony has stuck with it's boxy, bezel heavy design for years now - but we could finally be about to get a new chapter.
TechnoBuffalo: "Google quietly began offering several new Google Play Edition devices on Tuesday, including a version of the Xperia Z Ultra that runs a pure version of Android 4.4 KitKat."