What is the optimal screen resolution for a smartphone?

When we talk about smartphones on the pages of our online magazine, we do not forget to talk about the resolution of their screens. Screen resolution is the size of the image on the screen in pixels. The more pixels, the more objects can fit on the screen.

However, the point is not the number of objects that can fit on the screen, but the number of dots per inch — the smaller they are, the higher the graininess, which the human eye can also see. Of course, this applies to most low-resolution devices. There is even such a parameter PPI (from the English pixels per inch), which means the number of dots per inch. It is worth paying special attention to it, because in the absence of grain on the screen, it is much easier and more convenient to perceive information.

It is believed that the human eye can make out pixels on the screen with a PPI of 350. This is partly true, if you do not forget that each person is different and if you have a PPI of 350, then the other – as they say, for the eyes.

Here is an image so that you can clearly see the pixelity on the screen:

Here is a typical resolution for smartphones and PPI data:

  • 4 inches – 800×480 (250 PPI)
  • 4.5 inches – 1280×720 (326 PPI)
  • 4.7 inches – 1280×720 (317 PPI)
  • 5 inches – 1280×720 (294 PPI)
  • 5 inches – 1920 × 1080 (441 PPI)
  • 5.5 inches – 1920 × 1080 (401 PPI)
  • 5.5 inches – 2560 × 1440 (534 PPI)
  • 5.7 inches – 1920 × 1080 (386 PPI)
  • 5.7 inches – 2560 × 1440 (515 PPI)

Speaking about the PPI 350, we were not cunning – on a 5-inch screen with a resolution of 1280×720 pixels, it is really easy to see the graininess, however, remember that this also depends on the display technology. In this case, on a 5-inch smartphone with a resolution of 1920 × 1080, it is much more difficult to notice the graininess, you need to peer specifically and it’s not a fact that you can see something.

It turns out that the higher the resolution and PPI, the better? Yes that’s right. However, it is worth taking into account the fact that high resolution is often not the best way affects the autonomy of the device. For example, a resolution of 2560 × 1440 pixels will surely discharge 5.5 inches faster than a resolution of 1920 × 1080 pixels. In addition, such a high resolution often makes no sense – why is it needed with PPI 534, when you do not see the grain size already with PPI 350? That is why we recommend not chasing high numbers, but choosing a middle ground.

And one more important point. You can rely on reviews, but when it comes to the display, we strongly recommend that you get to know it personally, rather than making a choice only on the basis of reviews.