Asus Zenfone 2, 4.5G desteklemektedir. 4G bantlarıLTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 8(900), 28(700) - Taiwan LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800) - Global LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 17(700), 20(800) - US LTE band 1(2100), 3(1800), 38(2600), 39(1900), 40(2300), 41(2500) - China & India HızHSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps