LG X Fast was officially announced in August 2016, Device released in September 2016Mobile Network Support and BandLG X Fast have Dual, (Nano Sim) Card Slots,LG X Fast support all GSM Based network providers. LG X Fast 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,LG X Fast also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 800,LTE 1800,LTE