Xiaomi Poco X3 Pro official Pictures. Xiaomi Poco X3 Pro is a Smartphone of xiaomi. The Xiaomi Poco X3 Pro Android Smartphone. Announced Mar 2021. Features 6.67″ Display, Snapdragon 860 Chipset, 5160 MAh Battery, 256 GB Storage, 8 GB RAM, Corning Gorilla Glass 6. Xiaomi Poco X3 Pro price starts.