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