HTC desire 820 is a dual sim mobile last year I had purchased this mobile.It’s cost was 21, 999.It comes in 9 different color variant.It’s display type is LCD touchscreen 16M colors.Display resolution is 720* 1280, display size 5.5 inch wiith 267 ppi pixel density.display was not a full hd display.it came with android 4.4 with 2 gb RAM, I have faced lagging some times in this mobile, mobile overall perfermance was good, It’s internal memory was 16gb and external supports upto 128gb.It comes with 13mp camera with a resolution of 4160* 3120pixel with autofocus and LED flash.picture quality is very good.It supports 2g, 3g but it is not supporting 4g.micro usb 2. has been provided.It’s battery is only 2400mah, so it draws charge very soon.for me it is not a good mobile at RS.22, 000 price range