The Samsung Galaxy Grand Quattro has a 4.7-inch TFT resolution of 480 x 800 pixels and 198ppi pixel density,
Samsung Galaxy Grand quattro renders crisp and sharp multimedia content. This device displays photos and movies with great clarity for videos.
Its multi-touch screen allows you to use two or more fingers on the screen at a time(multitouch) hence you can use pinch for zooming in and out while using camera.
I had bought this phone after its launch in May 2013 and still works perfectly fine.Except for the lag.But I manage it using the various app to speed it up a bit.
It comes with a 1 GB ram and 1.2Ghz quad core processor backed by 1GB RAM.Can play play games without a glitch.Have used it very roughly in trains, had got wet during the rains and even took hits many times.but still doesnt give up.