Sony's problems in the smartphone arena aren't unique - HTC, LG, and others are all struggling to compete with Samsung and Apple - but they're nonetheless pressing, and the Xperia Z is the solution it hopes will address that. Piecing together top-tier specifications, like a huge Full HD display, 13-megapixel camera, and the sort of waterproofing you'd normally have to go to Japan to find on a phone, the Xperia Z also marks a step up in design refinement for Sony, leagues away from the creaky plastic of its older phones. Still, the rest of the smartphone world hasn't been standing still while Sony learns its lessons, and 2013 is already shaping up to be a knock-out one for devices. Can the Xperia Z maintain its CES momentum as it lands in the market? Read on for the full SlashGear review.