ZTE Grand X Pro was officially announced in March 2013, Device released in April 2013Mobile Network Support and BandZTE Grand X Pro have Dual Card Slots,ZTE Grand X Pro support all GSM Based network providers. ZTE Grand X Pro 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 1900,HSDPA 2100, (850/1900 or 850/2100 or 900/1900 or 900/2100),comes with network handling support with