Wileyfox Spark was officially announced in June 2016, Device released in July 2016Mobile Network Support and BandWileyfox Spark have Dual, (Micro Sim) Card Slots,Wileyfox Spark support all GSM Based network providers. Wileyfox Spark 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,Wileyfox Spark also support LTE based 4G Networks Support at Frequency level LTE 800,LTE 1800,LTE 2600,