BLU R1 Plus was officially announced in April 2017, Device released in April 2017Mobile Network Support and BandBLU R1 Plus have Dual Card Slots,BLU R1 Plus support all GSM Based network providers. BLU R1 Plus 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 1700,HSDPA 1900,HSDPA 2100,BLU R1 Plus also support LTE based 4G Networks Support at Frequency level LTE 700,LTE 2600,LTE 1700,LTE 1900,