BLU Grand X LTE was officially announced in June 2017, Device released in June 2017Mobile Network Support and BandBLU Grand X LTE have Hybrid Dual Sim Card Slots,BLU Grand X LTE support all GSM Based network providers. BLU Grand X LTE 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 1700,HSDPA 1900,HSDPA 2100,BLU Grand X LTE also support LTE based 4G Networks Support at Frequency level LTE