Xiaomi Black Shark 4 official Pictures. Xiaomi Black Shark 4 is a Smartphone of xiaomi. The Xiaomi Black Shark 4 Android Smartphone. Announced Mar 2021. Features 6.67″ Display, Snapdragon 870 5G Chipset, 4500 MAh Battery, 256 GB Storage, 12 GB RAM. Xiaomi Black Shark 4 price starts.