The Xiaomi Mi 11 ultra is global works in the USA on T mobile, mint mobile, Att its a high-end Android smartphone with an octa-core processor and 8GB of RAM. It has a large 6.8-inch AMOLED display and a triple rear camera system with 50MP, 48MP, and 20MP lenses. The phone is equipped with 256GB of storage capacity and supports 5G, 4G, 3G, and 2G cellular bands. Other features include Bluetooth, Wi-Fi, NFC, GPS, and USB Type-C connectivity, as well as a high capacity battery (5000 mAh or more), water-resistant design, and wireless charging. The phone is factory unlocked and has dual SIM (SIM + SIM) capabilities.