Vivo V1 was officially announced in July 2015, Device released in July 2015Mobile Network Support and BandVivo V1 have Dual, (Nano Sim + Micro Sim) Card Slots,Vivo V1 support all GSM Based network providers. Vivo V1 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 1900,HSDPA 2100,Vivo V1 also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 1800,LTE 2300,comes with