Sharp Aquos Crystal Y was officially announced in July 2015 , Device released in July 2015 Mobile Network Support and BandSharp Aquos Crystal Y have Yes Card Slots, Sharp Aquos Crystal Y support all GSM Based network providers. Sharp Aquos Crystal Y mobile device support 2G Band Frequency at GSM 900,GSM 1800 and Hight Speed 3G Network Band at HSDPA 900, Sharp Aquos Crystal Y also support LTE based 4G Networks Support at Frequency level