I bought my freind this mobile on First sale and I used almost 13 days. This is very good mobile , So far there are no hanging, heating, lagging issues. It runs smooth and fast. Theatre Max is a great experience especially 3D movies with VR Headset. Battery is coming one and half day in normal use. Front Cam takes good pictures where as rear cam was not upto the mark. Low light photography is a little bad. It has only one slot where you can use one sim and one Sd card or two sims at a time. This was not mentioned any where at the time of first sale. Display is good, Contact name sige are restricted to 10 letters. We can not store a name more than 10 letters. We have to note in short. This is not there in previous versions K3note. and other phones. This is some thing irritating. Audio is good but not provided earphones. Need to buy for extra cost. So far it has given overall good performance.