Karbonn Aura 4G was officially announced in May 2017, Device released in May 2017Mobile Network Support and BandKarbonn Aura 4G have Dual Card Slots,Karbonn Aura 4G support all GSM Based network providers. Karbonn Aura 4G mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,Karbonn Aura 4G also support LTE based 4G Networks Support at Frequency level LTE 1800,LTE 850,LTE 2300, (With VoLTE),