ZTE Chat 4G was officially announced in March 2016, Device released in March 2016Mobile Network Support and BandZTE Chat 4G have Micro-SIM Card Slots,ZTE Chat 4G support all GSM Based network providers. ZTE Chat 4G mobile device support 2G Band Frequency at GSM 900,GSM 1800 and Hight Speed 3G Network Band at HSDPA 900,HSDPA 2100,ZTE Chat 4G also support LTE based 4G Networks Support at Frequency level LTE 800,LTE 1800,LTE 2600,comes with network handling support