Keyword is the Pentile matrix in which the Samsung Galaxy S3 Mini with 4 inch display results in that many symbols and white / gray areas are shown absolutely pixelated. This Pentile matrix can be seen clearly if you compare device (such as a Nexus 7 or 4 or even older models like the HTC One or the Samsung Galaxy S2). I just can not get used to it.
Of course, who has no comparison, or who wants to get used to it for the Galaxy S3 Mini is a good mid-range device. All others should prefer to wait for a version without Pentile matrix or rely on another device.