Microsoft Lumia 650 Dual Sim was officially announced in February 2016, Device released in February 2016 Microsoft Lumia 650 Dual Sim made under Lumia.Mobile Network Support and BandMicrosoft Lumia 650 Dual Sim have Dual, (Nano Sim) Card Slots,Microsoft Lumia 650 Dual Sim support all GSM Based network providers. Microsoft Lumia 650 Dual Sim 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