Sharp Aquos Zeta SH-03G was officially announced in May 2015, Device released in May 2015Mobile Network Support and BandSharp Aquos Zeta SH-03G have Nano-SIM Card Slots,Sharp Aquos Zeta SH-03G support all GSM Based network providers. Sharp Aquos Zeta SH-03G mobile device support 2G Band Frequency at GSM 900,GSM 1800 and Hight Speed 3G Network Band at HSDPA 850,HSDPA 2100,HSPDA 800,Sharp Aquos Zeta SH-03G also support LTE based 4G Networks Support at Frequency level