Resolution, refresh and the room you sit in

The person at the desk

Most office days look the same: a browser with too many tabs, a spreadsheet, a chat app and a video call. You read far more than you watch, so the number that matters is how sharp the text looks, not how fast the screen refreshes. Everything below follows from that.

Size and resolution

A 24-inch 1920×1080 screen has a pixel density of about 92 ppi. It is fine, but small type shows stepped edges. A 27-inch 2560×1440 monitor lifts that to about 109 ppi and gives you room for two windows side by side. A 27-inch 4K panel reaches roughly 163 ppi, so text looks printed. Windows and macOS then need about 150% scaling to keep it readable, which leaves a workspace equal to roughly 2560×1440 with much finer letters.

If you read all day, 4K is worth it. If you mostly glance at dashboards, 1440p saves money and graphics load. At 32 inches, sit back: you want a desk at least 80 cm deep.

One-cable desks

A USB-C monitor with DisplayPort Alternate Mode can carry video, charge your laptop and connect your keyboard through a built-in hub. The Dell UltraSharp U2723QE delivers 90 W, adds RJ45 Ethernet and includes a KVM switch, so one keyboard and mouse can move between a work laptop and a personal computer. Check that the monitor's power delivery meets your laptop charger's rating. Otherwise the battery slowly drains under load. Some models, such as the 32-inch Dell UltraSharp U3223QZ, also include a webcam, which helps if your laptop stays closed in a dock.

Comfort features that matter

A height-adjustable stand is the most underrated spec. The top edge of the screen should sit at or just below eye level, at about 50 to 70 cm from your face. Tilt and pivot help, and VESA 100×100 mounting lets you fit a monitor arm to free up desk space. Look for a flicker-free backlight; a low blue light certification such as TÜV Rheinland is a quick filter. A matte anti-glare coating copes with windows and ceiling lights better than glossy. For brightness, 250 to 350 nits is plenty indoors, though a desk facing a window benefits from more.

Panel type

IPS panels give wide viewing angles and steady colour, and most office monitors use them. VA panels offer deeper contrast and often cost less, but colour can shift when you sit off-axis, and they smear a little in motion. Avoid TN panels unless the budget leaves no other option.

Quick buying checklist

• Pick 27 inches unless your desk is shallow.
• Choose 4K if you read all day, 1440p if you split time with other tasks.
• Match USB-C wattage to your laptop's charger.
• Insist on height adjustment or buy a VESA arm.
• Check the return policy for dead pixels.