Xiaomi Poco X4 NFC official Pictures. Xiaomi Poco X4 NFC is a Smartphone of xiaomi. The Xiaomi Poco X4 NFC Android Smartphone. Not Announced Yet. Features 6.67″ Display, MediaTek Dimensity 920 5G Chipset, 5160 MAh Battery, 256 GB Storage, 8 GB RAM, Corning Gorilla Glass 5. Xiaomi Poco X4 NFC price starts.