Oppo AX7 was officially announced in January 2019, Device released in January 2019Mobile Network Support and BandOppo AX7 have Dual, (Nano Sim) Card Slots,Oppo AX7 support all GSM Based network providers. Oppo AX7 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 1700,HSDPA 1900,HSDPA 2100,Oppo AX7 also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 1800,LTE