http://www.xperiablog.net/2015/08/27/xperia-z5-press-pictures-emerge-23mp-camera-confirmed/ The three models will primarily differ as per below: – Sony Xperia Z5: Features a 5.2-inch display with FHD (1080 x 1920) pixel resolution – Sony Xperia Z5 Compact: Features a 4.6–inch display with HD (720 x 1280) pixel resolution – Sony Xperia Z5 Premium: Features a 5.5–inch display with QHD (1440 x 2560)