Quick answer
Monitor size should be chosen with desk depth and viewing distance, not just screen diagonal. A large screen on a shallow desk can feel awkward, while a small high-resolution screen can make text scaling more important.
Measurement checklist
- Measure desk depth from keyboard position to the likely screen position.
- Check monitor stand depth and whether an arm would change placement.
- Leave room for speakers, laptop stands, notebooks and cable movement.
- Compare screen size with resolution so text and windows remain practical.
- Check height adjustment if the monitor must sit below a shelf or cabinet.
Trade-offs
A larger screen can help multi-window work, but it may require more head movement or a deeper desk. A smaller screen can fit tight spaces, but may reduce workspace unless paired with a suitable resolution.
Before you buy
Check full dimensions with stand, VESA support, return terms and packaging size. This guide does not provide ergonomic or medical advice.