Vivo Z1 Pro was officially announced in July 2019, Device released in July 2019Mobile Network Support and BandVivo Z1 Pro have Dual, (Nano Sim) Card Slots,Vivo Z1 Pro support all GSM Based network providers. Vivo Z1 Pro mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 900,HSDPA 1900,HSDPA 2100,Vivo Z1 Pro also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 1800,LTE