External StoragemicroSD, up to 1 TB (dedicated slot) Network and Data Number of sim slots1 Nano-Sim 2G networkGSM 850/900/1800/1900 MHz 3G networkHSDPA 850/900/1900/2100 MHz 4G networkLTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 13(700), 20(800), 28(700),...