Asus Zenfone 5 16GB Dual SIM (Unlocked) A501CG 3G 5" Intel Z2560 1.6GHz Charcoal Black Stunning 5-inch HD IPS+ screen for a spectacular viewing experience Interchangeable back cover Dual SIM support ideal for travellers 3G: 850/900/1900/2100 MHz (Compatible with AT&T, T-Mobile, Sprint, Verizon, US Cellular, etc)/ GSM: 850/900/1800/1900 MHz