Both phones run Android 8.0 Oreo, have Qualcomm’s Snapdragon 845 processor, 4GB RAM, 64GB storage with microSD support up to 400GB, Quick Charge 3.0, water resistance, rear-mounted fingerprint reader, Gorilla Glass 5, a front facing 5MP camera (23mm wide angle, f/2.2), and a 19MP rear camera with 4K HDR video recording and 960fps slow motion at up to 1080p.
Xperia XZ2 has a 5.7-inch FHD+ display (2160×1080, 18:9, HDR) & a 3180mAh with Fast Wireless Charging. The XZ2 Compact has a 5.0″ Full HD+ (1080 x 2160, 18:9) HDR display with a 2870mAh battery.
Both phones be available in the UK for £699 and £549 in March of 2018. The U.S. released is set for the same time but pricing hasn’t been announced.