The XZ2 Premium has one of the highest resolution screens ever put in a smartphone, a 4K HDR display, and it features a new dual camera system that supports very high sensitivity so you can take pictures in nearly complete darkness. The phone can also record 4K HDR videos. Think about the XZ2 Premium as a super-powered version of the regular Xperia XZ2 in almost every way imaginable: higher
Technology — There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.
