Mobile Network Support and BandZTE Blade V2021 5G have Dual Nano-SIM Card Slots,ZTE Blade V2021 5G support dual mode based on GSM/CDMA based network providers. ZTE Blade V2021 5G mobile device support GSM 2G Band Frequency at GSM: 850/900/1800/1900, ZTE Blade V2021 5G mobile device support CDMA 2G Band Frequency atand Hight Speed 3G Network Band at WCDMA bands 1/2/4/5/6/8/19,ZTE Blade V2021 5G also support LTE based 4G Networks Support at Frequency level 4G LTE B1/B3/