The most common mistakes in choosing a computer monitor?
Guide to avoiding classic pitfalls and choosing the ideal screen
Introduction
Choosing the right computer monitor is one of the most important decisions for your everyday computing experience. The monitor is the medium through which you view everything: from work and study, to movies and games. Unfortunately, many people make common mistakes that can cost money, time and eye strain. In this article, we will show you the most common mistakes and how to avoid them, using simple language and practical advice.
The 10 Most Common Mistakes
1️⃣ Select based on price only
The biggest mistake is choosing a monitor just because it's cheap. Cheap monitors often have a dull image, poor color reproduction, and are tiring on the eyes. In the end, you'll need to replace it sooner, spending more money.
First determine your usage (gaming, work, graphic design, movies) and look for the best monitor within your budget. A quality monitor can serve you for 5-7 years without any problems.
2️⃣ They overlook the size of the space
Many people buy large monitors without considering whether they will fit on their desk or whether the viewing distance is right. The result? Headaches, eye strain, and difficulty seeing the entire screen.
For a 27-inch (69 cm) screen, the correct viewing distance is at least 60 cm, while for a 32-inch (81 cm) screen, it is at least 80 cm. Measure your space before you decide.
3️⃣ They overlook image clarity (resolution)
They buy a large screen with a low resolution (e.g. 32" 1080p), resulting in the image looking blurry and pixelated. It's like enlarging a photo too much - the detail is lost.
24-25 inches → Full HD (1080p) | 27 inches → QHD (1440p) | 32 inches and above → 4K (Ultra HD)
4️⃣ They don't consider the screen type
There are various display technologies (TN, IPS, VA), and each has different advantages. Choosing one without research can result in a picture with limited colors or poor viewing angles.
TN = fast for gaming, IPS = bright and vibrant colors for work/movies, VA = deeper blacks and high contrast.
5️⃣ They overlook the refresh rate
Gamers often buy 60Hz monitors, but for a smooth gaming experience they need at least 144Hz. The difference in motion is noticeable – like the difference between a 24fps and 60fps movie.
General Use: 60-75Hz | Gaming: 144Hz+ | Professional Gaming: 240Hz+
6️⃣ They don't check compatibility with the graphics card
Some people buy high-resolution and fast monitors (e.g. 4K 144Hz), but their graphics card cannot support these features, resulting in lower resolution or lag.
Look online to see what your card supports or check by right-clicking on your desktop → Display Settings → Display Information. Make sure the card supports the resolution and Hz you want.
7️⃣ They forget the connection ports
Some people buy a monitor without checking if it is compatible with their computer. Example: a monitor with only DisplayPort and a computer with HDMI. This requires adapters that may reduce quality or speed.
Check what ports your computer has (HDMI, DisplayPort, USB-C) and make sure the monitor supports them. For 4K above 60Hz you need HDMI 2.1 or DisplayPort 1.4.
8️⃣ They ignore ergonomics
Monitors with a fixed stand or without proper height and tilt adjustment cause poor posture, neck and back pain. Some cheap monitors even "shake" when you type.
Choose a monitor with an adjustable stand or VESA support for the arm. Your eye should be at the height of the top third of the screen.
9️⃣ They ignore the brightness
Brightness is important depending on your space. In an office with lots of natural light or windows behind the screen, a dark screen makes it difficult to read. HDR significantly improves the experience in movies and games.
Dark room: 250-300 nits | Normal lighting: 300-400 nits | Bright room: 400+ nits | True HDR: 600+ nits
(I.e. They ignore reviews and experiences
Some people only trust the features listed by the manufacturer and don't look for expert analysis or other users' experiences. They often discover problems like dead pixels, poor service, or operational issues.
Read at least 3-5 reviews from trusted sources and watch demo videos. Also check negative reviews for potential problems.
Comparison of Display Technologies
| Technology | Advantages | Disadvantages | ideal for |
|---|---|---|---|
| TN | Very fast response, economical | Limited off-center colors, poor viewing angles | Competitive games (FPS, esports) |
| IPS | Vivid and accurate colors, good viewing angles | May have a little "shine" on the edges, a little more expensive | Graphic design, photography, video editing, general use |
| VA | Deeper blacks, high contrast | Less fast in fast movements, moderate speed | Movies, series, content with dark scenes |
| OLED | Perfect blacks, excellent colors, instant response | Very expensive, risk of image "burn-in" with static images | Professional creators, high-end gaming |
Step-by-Step Guide to the Right Choice
Gaming, work, graphic design, movies – each use case has different requirements. If you do a lot of things, prioritize what’s most important. For example, if you work 8 hours and play 2, choose a monitor for work, not just gaming.
Measure the width of your desk and the distance you sit from the screen. Also consider space for your keyboard and mouse. You'll avoid screens that seem too big or too small for your space.
Consider additional costs such as cables, monitor arm or adapters. For general use: €150-300, for gaming: €250-500, for professional use €400+.
Read expert reviews, watch videos and user reviews. Make a list of 3-5 models and compare features and prices.
Make sure you can return the screen if you are not satisfied. It is important to test the screen in your space before committing.
Features That Really Count
Beyond size, resolution, and technology, pay attention to these features:
- Response time: For games 1-5ms, for work 8-10ms is enough.
- Input Lag: Gaming <10ms latency
- Color coverage: sRGB for general use, DCI-P3 for photo/video professionals.
- Brightness: 250-400 nits for normal use, 600+ nits for true HDR.
- Contrast ratio: 1000:1 and above for correct display of dark and bright areas.
- Anti-reflection: Matte surface if you have windows or bright lighting to avoid eye fatigue.
Additional Useful Tips
Speakers: Built-in speakers exist, but they are rarely of good quality. If you don't have separate ones, factor them into your budget.
Convex vs Flat: Curved screens are impressive for movies and games, but they're not always practical for graphic design or multiple users at once.
Second Screen: If you plan to add another monitor, prefer the same or similar models for uniformity of colors and height.
Warranty and service: Choose brands with good support in Greece and a 3-5 year warranty for safety.
Especially for Gamers
For gaming, be careful:
- FreeSync or G-Sync: They avoid image tearing. FreeSync for AMD, G-Sync for Nvidia.
- Game type: FPS/racing → speed (144Hz+), RPG/adventure → colors & resolution.
- Don't overdo it with Hz: 144Hz covers 99% of gamers. 240Hz is only for professionals.
Especially for Work
For work, rely on:
- Blue light filter: Reduces eye fatigue during long-term use.
- Flicker-free: Flicker-free screens for less fatigue.
- Pivot: Very useful for text or code – the screen rotates vertically.
- USB Hub: Convenient for connecting peripherals.
🎯 Conclusion
A monitor isn't just a purchase – it's an investment in your everyday experience and your eyes. Take the time to research.
By avoiding common mistakes and following a methodical guide, you will find a monitor that will serve you flawlessly for years. Read reviews, watch videos, ask friends.
Remember: The best screen is the one that fits your needs and your space, not the biggest or with the most specifications!
Last tip: If you're having a hard time deciding between two models, read the negative reviews. You'll often figure out which one is more reliable.
(I.e. Last updated: January 2026
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