Sharp Z3 was officially announced in April 2017, Device released in April 2017Mobile Network Support and BandSharp Z3 have Dual Card Slots,Sharp Z3 support all GSM Based network providers. Sharp Z3 mobile device support 2G Band Frequency at GSM 900,GSM 1800 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,Sharp Z3 also support LTE based 4G Networks Support at Frequency level LTE 700,LTE 2100,LTE 1800,LTE 2600,LTE 850,LTE 900,LTE 1900,LTE 2300,LTE 2500, (VOLTE),