Mobile Network Support and BandVivo V20 have Dual Nano-SIM Card Slots,Vivo V20 support all GSM Based network providers. Vivo V20 mobile device support 2G Band Frequency at GSM: 850/900/1800/1900 and Hight Speed 3G Network Band at WCDMA: 1/2/4/5/8,Vivo V20 also support LTE based 4G Networks Support at Frequency level 4G LTE B1/B3/B5/B8/B38/B40/B41,comes with network handling support with Network settings and work offline with flight Mode. Device Body Design