BLU Dash X LTE was officially announced in November 2015, Device released in November 2015Mobile Network Support and BandBLU Dash X LTE have Dual Micro SIM Card Slots,BLU Dash X LTE support all GSM Based network providers. BLU Dash 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,BLU Dash X LTE also support LTE based 4G Networks Support at Frequency level LTE 700,LTE