We hope you weren't getting too comfy with the months-old Xperia Z2 -- Sony has just unveiled another range-topping Android smartphone, the Xperia Z3. It's really a subtle evolution of its predecessor. You'll still find a 5.2-inch, 1080p display, a 20.7-megapixel camera and waterproofing, but there's now a more rounded aluminum frame. Sony has also added a new, wide-angle 25mm lens (to fit more into a shot) and extra-high ISO 12,800 light sensitivity. It's a little bit faster as well, with a speed-bumped 2.5GHz Snapdragon 801 processor instead of the 2.3GHz chip you saw in the Z2.