Apple iPhone 5s GSM Unlocked 16GB Gold- C Grade Technology: 4G LTE Built-in Storage: 16GB Operating System: iOS 7 Data transfer: GPRS, EDGE, HSDPA, LTE, Wi-Fi Compatible Carrier & Service: GSM Unlocked (can be used with any GSM SIM card) Form Factor: Smart Phones SIM Card Type: Nano SIM |