Display All the three devices measure 4.3 inches in diagonal. While both the HTC One Mini and the Xperia Z1 Compact offer a resolution of 720 x 1280, resulting in a pixel density of 342 ppi, the Galaxy S4 Mini offers a resolution of 540 x 960 and a pixel density of 256 ppi.
Regarding the display type, the Compact comes with a TFT panel and the One Mini offers an LCD2, while Samsung has fitted the S4 Mini with a Super AMOLED screen.
Winner: HTC One Mini has en edge here over the Xperia Z1 Compact