When it comes to 3D modeling, better resolution is always preferred. In terms of size, a 24-inch monitor with 1080p resolution is recommended. Choose a 28-inch display for a 1440p display. A 4K monitor can have a screen size of up to 34 inches.
These are based on the displays’ ideal pixel density. You won’t have to worry about pixelated photos or fuzzy text if you use the proper size and resolution.