Premium Sony Xperias is where a lot of firsts happen - first 4K display on a smartphone with the Z5 Premium, first HDR display on a smartphone with the XZ Premium alongside 960fps super slow-mo video recording, and now, on the Xperia XZ2 Premium - a dual camera for the first time on a Sony smartphone (a bit late to that party, eh?).
Source: https://www.gsmarena.com/sony_xperia_xz2_premium_hands_on-review-1792.php
