Lenovo K900 was officially announced in January 2013, Device released in April 2013Mobile Network Support and BandLenovo K900 have Micro-SIM Card Slots,Lenovo K900 support all GSM Based network providers. Lenovo K900 mobile device support 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,comes with network handling support with Network settings and work offline with flight Mode. Device Body