It was bound to happen sooner or later – the world’s first smartphone boasting a 4K display has been officially announced. That’s the Sony Xperia Z5 Premium, which got unveiled at IFA 2015. Long story short, we’re dealing with a cool yet weird beast of a smartphone – a smartphone reminding us that technology still has plenty of room ahead of it to evolve. After all, a figure of 800 pixels per inch sound quite impressive, no matter how we look at it. On the other hand, the Z5 Premium raises the question whether a 4K screen on a smartphone is truly something we need or simply …
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