Why Understanding Screen Size and Screen Resolution is Important

Why Understanding Screen Size and Screen Resolution is Important

It would help if you needed to consider lots of things when developing a mobile application. It would help if you did a lot more to keep track of, but some elements may be lost in the shuffling. That is why experts recommend staying organized with the submission checklists & tools. The actual screen of different devices is the one factor that is sometimes neglected because of various reasons.

Size of the screen & resolution are the two things you need to keep in mind before, after, and during developing the mobile application. The calculation of the apps is critical to calculating, but you can account for an online PPI calculator that allows you to find the pixels per inch and dot per in for each.

Importance of screen size & resolution:

The size of the screen is important because there are a variety of options for the screen sizes. You can’t ignore the importance of size & screen resolution, and this is because the resolution can affect the app design. By considering this information, certain tools are recommended for app designers. Now, you know that screen resolution & size are very important but for different reasons.

Before developing the apps, make sure of the size & resolution of the app. For convenience, use an online pixel density calculator that determines an electronic image device’s pixel density ranges from desktop to smartphones & image digitizing devices.

How to calculate pixels per inch:

Now, you have understood the difference between the size and dimensions of the screen resolution. Both are two different things, but some people make them similar. However, the screen size is measured in inches, and it is known as the actual screen of a particular device. Measurements are taken from the corner of the screen to the opposite diagonal corner. It is so simple; anyone can calculate it by using the simple math scale. The screen resolution is a bit different from the size, and the resolution is calculated by the number of pixels, which can be displayed in each dimension.

You need to figure out the size of the screen and resolution to calculate the pixel per inch of any device. Here’s how to calculate PPI step-by-step.

  • Add the squares of both the numbers in the screen resolution.
  • Now, compute the square root for the number.
  • Divide the previous number with the screen size.

Instead of performing the manual calculation, use the PPI calculator to find the pixel per inch & dots per inch.

Different types of screens:

We have already elaborated on the difference in screen size and resolution, but with this fact, some resolutions are more popular as compared to the others. According to research, smartphones with 720 x 1280 pixels are commonly used. This would be helpful for you to target the market. There are two types of screens, and they’re

  • HD screens
  • QHD screens

HD screens are more popular than the QHD; most devices use the HD screen display. However, the calculation for pixels might be complex sometimes, so you don’t need to worry. Use the PPI resolution calculator that tells how many pixels are there in one inch.


In this article, we’ve elaborated on the difference in screen size & resolution and both the numbers can help you calculate the pixel per inch. It is important to determine because it can affect the way that you design the mobile application. You can consider an online PPI calculator as well for its complex calculations. Different screen resolutions & pixels are also taken into account in this post.


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