Sony Xperia J was officially announced in August 2012, Device released in October 2012 Sony Xperia J made under Xperia.Mobile Network Support and BandSony Xperia J have Mini-SIM Card Slots,Sony Xperia J support all GSM Based network providers. Sony Xperia J 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 1900,HSDPA 2100, 900 / 2100 - ST26i, 850 / 1900 / 2100 - ST26a,comes