HTC Desire 816 was officially announced in February 2014, Device released in March 2014 HTC Desire 816 made under Desire.Mobile Network Support and BandHTC Desire 816 have Yes Card Slots,HTC Desire 816 support all GSM Based network providers. HTC Desire 816 mobile device support 2G Band Frequency at GSM 900,GSM 1800,GSM 1900 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,HSPDA 800,HTC Desire 816 also support LTE based 4G Networks Support at Frequency level