Xiaomi Redmi S2 was officially announced in May 2018, Device released in May 2018Mobile Network Support and BandXiaomi Redmi S2 have Dual, (Nano Sim) Card Slots,Xiaomi Redmi S2 support all GSM Based network providers. Xiaomi Redmi S2 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,Xiaomi Redmi S2 also support LTE based 4G Networks Support at Frequency level LTE 2100,LTE 1800,LTE 850,LTE