Sony's incoming Xperia Z5 flagship will be the first smartphone with a 4K screen, according to a leaked video from Clubic.com. In it, Sony's marketing director says the company will release both a 5.2-inch Z5 and 5.5-inch Z5 'Premium,' and the video (below) is focused on the larger model. On top of the 4K screen (which yields over 800 pixels per inch), the device also packs a 23-megapixel camera with a 0.03 second autofocus and 5X digital zoom, confirming a previous leak. The new flagship will be just as waterproof and dustproof as the Xperia Z3+ model, but with an interesting twist -- the micro-USB connector is waterproof, even without a cover.
