My monitor is 17 inches, it’s normal?
The larger the text on a computer monitor, the easier it is to see. A larger computer monitor will allow larger text to be displayed. This makes it easier for the user to read the text, thereby resulting in less eye strain. Generally speaking, a larger computer monitor is easier on the eyes.
With each you can adjust the font to the preferred size. I use my laptop more often than my desktop and as long as I have the font set properly there isn’t any eye strain.