NetworkGSM / HSPA / LTEGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)HSDPA 850 / 900 / 1900 / 2100HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - CanadaLTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 12(700), 13(700), 17(700), 20(800), 26(850), 29(700), 38(2600), 40(2300), 41(2500), 66(1700/2100), 71(600) - CanadaHSPA, LTE-ALaunch2019, FebruaryAvailable.
Testing conducted by Apple in August 2017 using preproduction iPhone X, iPhone 8, and iPhone 8 Plus units and software, and in August 2018 using preproduction iPhone X S, iPhone X S Max, and iPhone X R units and software, with accessory Apple USB-C Power Adapters (18W Model A1720, 29W Model A1540, 30W Model A1882, 61W Model A1718, 87W Model.