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The Sony Xperia XZ Premium has a gorgeous 4K display. Better yet, a 4K HDR display! The latest Snapdragon 835 chipset is pulling the strings and delivering lightning-fast LTE while the Adreno 540 is firing up millions of pixels in a heartbeat. With or without the mirror finish, this is one of the classiest designs around and waterproof, too.
Source: http://www.gsmarena.com/sony_xperia_xz_premium-review-1610.php