ZTE Nubia Z5 was officially announced in December 2012, Device released in January 2013Mobile Network Support and BandZTE Nubia Z5 have Mini-SIM Card Slots,ZTE Nubia Z5 support dual mode based on GSM/CDMA based network providers. ZTE Nubia Z5 mobile device support GSM 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900, ZTE Nubia Z5 mobile device support CDMA 2G Band Frequency atand Hight Speed 3G Network Band at HSDPA 2100, WCDMA 2100MHz, EVDO 800MHz,comes