Most people believe that to some extent, the higher the resolution of a smartphone screen, the better. In fact, this is not the case because the maximum pixel density that the human eye can distinguish does not exceed 300 ppi (the number of pixels per inch), and beyond this value, there is not much difference for the human eye. At the beginning of this year, LG launched its first smartphone LG G3 with QuadHD resolution, reaching 2560 × 1440 pixels and an astonishing PPI of 535, which is much higher than all previous smartphones with 1920 × 1080 resolution.
But can our eyes really tell the difference between LG G3 and Galaxy S5? The screen PPI of G3 is significantly higher than that of Galaxy S5 431 ppi. However, from the actual experience, there is almost no difference in clarity between G3 and Galaxy S5, which is why companies like Apple are more concerned about the brightness of the display screen compared to resolution.
