Lenovo VIBE X2 was officially announced in September 2014, Device released in October 2014Mobile Network Support and BandLenovo VIBE X2 have Dual Card Slots,Lenovo VIBE X2 support all GSM Based network providers. Lenovo VIBE X2 mobile device support 2G Band Frequency at GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,Lenovo VIBE X2 also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 800,LTE 1800,LTE 2600,