Samsung Ativ SE SM-W750V was officially announced in April 2014, Device released in April 2014 Samsung Ativ SE SM-W750V made under Ativ S.Mobile Network Support and BandSamsung Ativ SE SM-W750V have Yes Card Slots,Samsung Ativ SE SM-W750V support dual mode based on GSM/CDMA based network providers. Samsung Ativ SE SM-W750V mobile device support GSM 2G Band Frequency at GSM 850,GSM 900,GSM 1800,GSM 1900, Samsung Ativ SE SM-W750V mobile device support CDMA 2G Band Frequency