Start with a real use case
Before comparing specifications, describe an ordinary day. Do you read documents for hours, edit photographs, share your screen or play games after work? Write down the three tasks you repeat most often. Our suggestion is to build your buying criteria around those tasks and give occasional features a lower priority.
Measure the available space and desk depth. Use cardboard to mark the approximate footprint of the screen, including its stand. Check that the keyboard and mouse fit without putting you too close and that the screen will not block a window. This is a simple space-planning exercise, not a professional ergonomic assessment.
Evaluate what you will look at every day
If working with text is your priority, try documents and pages resembling your own. Set system scaling to a comfortable size before deciding whether a resolution is useful. Do not judge the display entirely from a full-screen promotional video: that can hide problems you might notice when reading small letters.
Look for reflections under lighting similar to your room. A desk facing a window presents a different situation from a dark room. Check height and tilt adjustment, the stand footprint and compatibility with an arm you already own. These details are less attention-grabbing than a brightness number, but they shape everyday use.
Panel care is part of the purchase
Dell warns that prolonged static images can cause retention or burn-in on its OLED monitors and describes maintenance measures. This identifies a possibility; it does not predict the lifespan of every screen or compare all models. [1]
If you are considering OLED for long sessions with the same toolbars and windows, read the specific model’s care instructions. Check what happens during automatic maintenance cycles and exactly what the warranty covers in your country. When comparing an IPS option, use the same list of tasks, lighting, connections and budget; the panel name should not become a universal verdict.
Make a checklist you can verify
Record the resolution and refresh rate your computer can output, the ports available and the cables required. If you want one cable to connect and charge a laptop, look for explicit support for compatible video and power. A USB-C connector alone does not establish either.
- A sample document at your intended text size.
- Full dimensions, including the stand, and physical adjustments.
- A video mode supported by computer, cable and display.
- Return terms, maintenance instructions and warranty coverage.
This guide proposes a selection method. We have not tested displays or assigned scores to specific products.
Worked example: two 27-inch displays
Consider two 27-inch displays: 1920 × 1080 and 2560 × 1440. Their physical size is identical, but the second has about 109 pixels per inch rather than 82: 33% greater linear density. That does not mean everything looks 33% better. It describes pixel spacing; panel properties, coating and scaling also matter.
To cover the same physical width, a 600-pixel window on the first display needs about 800 pixels on the second. Moving a window between them can therefore change its apparent size. System scaling can help compensate, although applications may handle it differently.
| Calculated measure | 1080p | 1440p |
|---|---|---|
| Pixels per image | 2,073,600 | 3,686,400 |
| Approximate density | 82 ppi | 109 ppi |
| Physical width of a 16:9 panel | 59.8 cm | 59.8 cm |
1440p contains 78% more pixels. This increases rendering work in many games, but does not predict an equivalent FPS reduction: the GPU, CPU, settings and game matter. Compare your actual game at both resolutions, using the same settings and a repeatable scene before buying.
Use three decision conditions
- For long reading sessions, compare text at the physical size you intend to use, rather than comparing different scaling settings.
- For competitive play, check the refresh rate your system can use and the modes supported by the monitor input.
- For mixed work and entertainment, include height adjustment, reflections and stand size.
These numbers are geometric calculations, not product test results. Repeat them with your dimensions in the calculator. The diagonal describes the panel, excluding its bezel and stand.
Sources and documentation
Sources consulted on October 8, 2026. Original documentation; linked sources may be in English.
