Oppo A33c was officially announced in April 2016, (Expected Announcement), Device Expected to Release in and it was not yet officially released,Mobile Network Support and BandOppo A33c have Dual, (Micro Sim + Nano Sim) Card Slots,Oppo A33c support all GSM Based network providers. Oppo A33c 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,Oppo A33c also support LTE