What size monitor should I choose?

24 inch suits 1080p and close-up competitive play, 27 inch is the popular all-rounder for 1440p, and 32 inch and above is great for 4K and immersive games. Pick the size to match your desk distance and resolution.

Does screen size affect the resolution I need?

Yes. Larger screens benefit from higher resolution to stay sharp, so 27 inch pairs well with 1440p and 32 inch and up with 4K. Match resolution to size, and make sure your graphics card can drive it.

How far should I sit from this size of screen?

As a rough guide, sit a little further back from larger screens so you can take in the whole image comfortably. If desk space is tight, a smaller screen or a monitor arm can help you set the right distance.