Introducing the world's first 4K dual SIM smartphone; the Sony Xperia Z5 Premium leaves the world behind with its best in class features. Incorporating the best of Sony's technologies in a compact, lightweight body, this smartphone offers a slick user experience. Its 5.5inch 4K UHD Triluminos display combines X Reality Mobile Engine and Dynamic Contrast Enhancer for an unparalleled viewing experience. The Xperia Z5 Premium smartphone upscales up your photos and movies to incredible 4K quality while retaining every single detail. Available in black, it is precision etched with the Xperia mark and finished with a stunning mirror effect on the back. On the performance front, this smartphone is equipped with the zippy Qualcomm Snapdragon Octa Core processor and the efficient Android Lollipop v5.1 OS; the combined performance of these state of the art hardware and software components is something you will have to see to believe. The 23MP rear and 5MP front cameras incorporate high end features to give you the best possible photography experience. Additional features like the Fingerprint sensor, water and dust proof design, 4G LTE and WiFi connectivity, dual SIM slots, and 32GB of ROM, make this device an all round performer.