Archos 50 Diamond was officially announced in October 2014, Device released in January 2015Mobile Network Support and BandArchos 50 Diamond have Dual Micro SIM Card Slots,Archos 50 Diamond support all GSM Based network providers. Archos 50 Diamond 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 2100,Archos 50 Diamond also support LTE based 4G Networks Support at Frequency level