Huawei Mate 9 Porsche Design was officially announced in November 2016, Device released in December 2016Mobile Network Support and BandHuawei Mate 9 Porsche Design have Nano-SIM Card Slots,Huawei Mate 9 Porsche Design support all GSM Based network providers. Huawei Mate 9 Porsche Design 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,Huawei Mate 9 Porsche Design