Skip to main content
Three computer monitors in different sizes displaying blue and purple abstract graphics
DeviceDeal monitor guide

Monitor Buying Guide: How to Choose the Right Monitor

Compare screen size, resolution, panel technology, refresh rate, HDR and connectivity to find a monitor that suits your work, study, creative setup or gaming system.

Start with your main use

What type of monitor do you need?

The right monitor depends on what you do most, how much desk space you have and what your computer or console can support.

Quick answer

For everyday work, begin by comparing a 24-inch Full HD screen with a 27-inch QHD option. Gaming, creative work, multitasking and travel can require different priorities, so compare the features below before choosing.

Person using a desktop monitor for everyday computing

Home, study and everyday computing

For browsing, email, study, streaming and general tasks, compare screen size, Full HD or QHD resolution, panel type and stand adjustment before paying for specialist features.

Shop Budget Monitors
Two monitors in different sizes for office and business setups

Office and business

For productivity and multi-device desks, compare USB-C charging wattage, built-in hubs, KVM, Ethernet, webcam options and height, tilt, swivel or pivot adjustment where available.

Shop Office Monitors
Photographer and designer working with professional visual content

Creative and professional work

Compare resolution, colour gamut, factory calibration, bit depth, HDR capability and the software or hardware requirements of your workflow.

Shop 4K Monitors
Gaming monitor on a desk with speakers, controller, keyboard and headset

PC and console gaming

Match resolution and refresh rate to your gaming system, then compare response behaviour, variable refresh rate, HDR and the bandwidth of the available ports.

Shop Gaming Monitors
Slim portable monitor shown at several viewing angles

Portable and hybrid work

Compare weight, folded size, brightness, stand design and whether your laptop's USB-C port supports the video and power requirements of the display.

Shop Portable Monitors
Shop monitors by brand

Explore leading monitor brands at DeviceDeal

Browse current ranges from Acer, LG, ASUS, HP, BenQ, Dell, Lenovo, MSI, Philips and Samsung. Product range and availability vary by brand.

Acer LG ASUS HP BenQ Dell Lenovo MSI Philips Samsung
A practical starting point

Quick monitor comparison by use

These are common starting points rather than fixed rules. Always check the individual monitor and device specifications.

Main use Common starting point Features to compare
Home and study 24-inch Full HD or 27-inch QHD Panel type, stand adjustment, speakers or webcam if required
Office and business 24–27-inch Full HD or QHD USB-C charging, USB hub, KVM, Ethernet and ergonomic adjustment
Gaming Full HD, QHD or 4K based on the PC or console Refresh rate, response behaviour, VRR, HDR and port bandwidth
Creative work QHD, 4K, 5K or 6K based on the workflow Colour gamut, calibration, bit depth, contrast and HDR performance
Multitasking Ultrawide, super-ultrawide or multiple monitors Aspect ratio, curve, KVM, picture-by-picture and desk space
Travel and hybrid work Portable display sized for your laptop and bag Weight, brightness, stand, cable requirements and USB-C support
Size, resolution and aspect ratio

How do screen size and resolution work together?

Screen size measures the diagonal display area. Resolution is the number of pixels available. A larger screen does not automatically look sharper, so compare both together.

Full HD

1920 × 1080 is a common choice for everyday work, study, video and gaming. Screen size and viewing distance affect how sharp it appears.

QHD / WQHD

2560 × 1440 provides more desktop space and detail than Full HD and is widely used for productivity, creative work and gaming.

4K UHD and above

4K UHD, 5K and 6K displays offer more pixels for detailed work and larger workspaces, but require compatible hardware, ports, cables and software scaling.

Ultrawide

Wider aspect ratios provide additional horizontal workspace and can reduce the need to switch between windows.

Curved displays

A curve can make a wide panel feel more consistent across the field of view. Curved monitors can also be used in multi-monitor arrangements when the desk and mounts suit the setup.

Check your device

Confirm that your computer, graphics card or console supports the target resolution and refresh rate through the selected port.

Useful tip: High pixel density may require interface scaling. Check your operating system and essential applications if you are considering a very high-resolution display.

Display technology

IPS, VA, TN, OLED or Mini LED?

No panel technology is best for every person. Compare the strengths and trade-offs that matter for your work and viewing environment.

Technology Typical strengths What to compare Often considered for
IPS / Fast IPS Wide viewing angles and consistent colour reproduction Contrast, backlight uniformity, refresh rate and calibration Office, general use, creative work and gaming
VA Strong native contrast and deep blacks for an LCD panel Dark-scene response, viewing angles and motion performance Entertainment, office work, curved and ultrawide displays
TN / Fast TN Fast response options and high refresh rates Viewing angles, colour performance and image consistency Competitive gaming and value-focused high-refresh setups
OLED / QD-OLED Per-pixel light control, very dark blacks and fast response Brightness, text rendering, static-content care and warranty terms Gaming, entertainment and colour-focused workflows
Mini LED Local-dimming backlight designed to improve brightness and contrast control Dimming-zone behaviour, blooming, panel type and HDR certification HDR, creative work, gaming and premium productivity displays

Important: Mini LED describes the backlight, not the LCD panel type. A Mini LED monitor may still use an IPS- or VA-family panel.

Gaming monitor on a desk with speakers, controller, keyboard and headset
Gaming monitor essentials

Refresh rate, response time and variable refresh rate

A higher refresh rate can make motion appear smoother when the gaming system produces enough frames. Response specifications are measured in different ways, so compare independent behaviour and settings rather than one headline number alone.

  • Variable refresh rate (VRR) helps the display follow changing frame output from compatible hardware.
  • AMD FreeSync, NVIDIA G-SYNC and G-SYNC Compatible are not identical labels; confirm the monitor, graphics hardware, port and driver combination.
  • Console gaming requires checking the console's supported resolution, refresh rate, HDR and VRR output against the monitor.
  • Dual-mode displays can offer different resolution and refresh-rate combinations; support varies by model.
HDR and colour performance

What should you check beyond an HDR label?

An HDR-compatible input does not describe the complete viewing experience. Compare the monitor's measurable display performance and the type of content you use.

Certification

Look for a clearly stated VESA DisplayHDR or DisplayHDR True Black level when independent certification matters to your comparison.

Brightness and dimming

Compare peak and sustained brightness, local-dimming design and how highlights and darker areas are handled.

Contrast and black levels

Panel technology and backlight design both influence black levels, shadow detail and perceived contrast.

Colour gamut

For professional workflows, check the stated coverage of spaces such as sRGB, DCI-P3 or Adobe RGB.

Calibration

Factory calibration, calibration reports and hardware-calibration support can be useful when colour accuracy is important.

Your full workflow

The computer, graphics hardware, operating system, application, cable and content must all support the intended HDR workflow.

Ports, cables and docking

Which monitor connections do you need?

Resolution and refresh-rate support depend on the monitor, source device, port implementation and cable. The connector name alone is not enough.

HDMI

HDMI carries video and audio. Newer HDMI 2.1 and 2.2 implementations can support very high resolutions and refresh rates, but each product may support only part of a specification.

DisplayPort

DisplayPort is widely used on PCs and workstations. Compare DisplayPort 1.4 or 2.1 support, compression, cable certification and the monitor's actual timing limits.

USB-C

USB-C can carry video through DisplayPort Alt Mode and may also provide data and laptop charging. Check video support and the monitor's stated Power Delivery wattage.

Thunderbolt

Thunderbolt-capable monitors can combine display, data and docking functions. Check the computer, cable and monitor requirements for Thunderbolt 4 or Thunderbolt 5 features.

USB hub, Ethernet and KVM

A built-in hub can reduce desk cables. Ethernet and KVM features can help users share peripherals or switch between compatible computers.

Daisy-chain and picture-by-picture

Some monitors support multi-display daisy-chaining or display two sources at once. Confirm operating-system, port and model support before planning the setup.

Shop cables for your monitor setup

Once you have checked the ports and cable requirements for your monitor and source device, browse the matching DeviceDeal cable category.

Legacy equipment: VGA and DVI may still be required for older systems, but check adapter direction, maximum resolution, refresh rate and audio support before buying an adapter.

Height-adjustable monitor on an organised home-office desk
Desk setup and ergonomics

Plan the monitor around your workspace

Before choosing a single large monitor, an ultrawide or multiple displays, measure the available desk space and consider where the screen, keyboard, laptop and other equipment will sit.

  • Compare height, tilt, swivel and pivot adjustment.
  • Check VESA mounting compatibility before choosing an arm or stand.
  • Allow room for the stand depth and cable connections.
  • For multiple displays, compare bezel width, matching resolution and mounting options.
  • Use flicker-reduction and low-blue-light features according to your preference; they do not replace comfortable positioning and regular breaks.
Monitor buying questions

Frequently asked questions

Thirty clear answers to common questions before buying and setting up a monitor.

Size, shape and everyday use

Is a 24-inch or 27-inch monitor better for office work?

A 24-inch monitor is a practical choice where desk space is limited, while a 27-inch monitor offers more physical workspace. Compare resolution as well as size: many buyers consider Full HD at 24 inches and QHD at 27 inches, but the best option depends on viewing distance, applications and budget.

Should I choose Full HD, QHD or 4K?

Choose based on screen size, viewing distance, the amount of workspace you need and what your computer supports. Full HD suits many everyday setups, QHD adds workspace and detail, and 4K provides more pixels for detailed or larger-screen work but may require stronger hardware and interface scaling.

How is monitor screen size measured?

Monitor size is measured diagonally across the viewable display area, not including the outer bezel. Two monitors with the same diagonal size can have different widths and heights when their aspect ratios differ, so check the product dimensions as well as the advertised screen size.

What are pixel density and display scaling?

Pixel density describes how closely pixels are packed into a given screen area. A higher-resolution display of the same physical size generally has higher pixel density, but text and controls may appear small without operating-system scaling. Check that your essential applications work well at the scaling level you expect to use.

Which aspect ratio should I choose?

A 16:9 display is a common general-purpose choice. Wider 21:9 and 32:9 formats provide more horizontal workspace, while 16:10 provides slightly more vertical room than 16:9. Check game, video, screen-sharing and application support because content may not always fill an ultrawide screen.

Should I buy a curved or flat monitor?

Flat monitors suit a wide range of desks and are easy to align in multi-monitor layouts. A curved display can make a wide screen feel more consistent across your field of view, particularly when you sit near the centre. Compare screen width, curve rating, viewing position, wall-mounting plans and shared viewing.

Is an ultrawide monitor better than two monitors?

An ultrawide provides one continuous desktop with no centre bezel, while two monitors can provide separate screens, flexible positioning and mixed orientations. Compare desk width, software use, screen sharing, input options and mounting requirements.

What should I check before buying a portable monitor?

Compare the portable monitor's dimensions, weight, brightness, stand or cover, inputs and included cables. Confirm whether your device can provide video and enough power over USB-C or whether the display needs a separate power connection. A USB-C connector alone does not guarantee video support.

Panel technology, HDR and colour

Is OLED better than IPS for a computer monitor?

OLED offers per-pixel light control, very dark blacks and fast response. IPS is widely used for consistent colour, wide viewing angles and office or creative work. Compare brightness, text rendering, static-content use, warranty terms, room conditions and budget rather than choosing by panel label alone.

What is Mini LED in a monitor?

Mini LED is a backlight technology used with an LCD panel; it is not a separate LCD panel type. It can provide many local-dimming zones for improved brightness and contrast control, but results vary by model. Compare dimming behaviour, blooming, panel type and HDR certification.

Does HDR make a noticeable difference?

HDR performance varies considerably. Compare brightness, contrast, black levels, colour gamut, local dimming and recognised certification rather than relying on an HDR-compatible label alone. The source device, application, cable and content must also support HDR.

What do sRGB, DCI-P3 and Adobe RGB mean?

They are colour spaces used by different content and production workflows. A wider advertised gamut is not automatically better for every task; coverage, accuracy, calibration controls and correct colour management all matter. Choose a monitor that matches the colour space required by your software and output.

Do I need a factory-calibrated monitor?

Factory calibration can be useful when colour accuracy matters, especially if the manufacturer provides a report or stated tolerance. It does not guarantee that every workflow will remain accurate indefinitely. Professional users may still need compatible calibration hardware, software and a regular calibration process.

Is a matte or glossy monitor better?

A matte surface can reduce sharp reflections in bright rooms, while a glossy surface can appear clearer or more contrast-rich in controlled lighting. The best choice depends on window placement, room lighting and how sensitive you are to reflections. Product listings may describe this as anti-glare, matte, semi-gloss or glossy.

Gaming and motion performance

What refresh rate do I need for gaming?

The useful refresh rate depends on the games you play and the frame rate your PC or console can produce at the chosen resolution. Competitive players may prioritise higher refresh rates, while other buyers may prefer a balance of resolution, image quality, HDR and refresh rate.

What is the difference between refresh rate and response time?

Refresh rate is how often the monitor can update the image each second. Response time describes how quickly pixels transition between states under a stated test method. Both affect motion clarity, but neither specification alone describes the complete gaming experience.

Does a 1 ms response-time claim guarantee no ghosting?

No. Brands may use different transition measurements, overdrive settings and test methods, and one quoted result may not represent every colour transition. Compare the stated method, usable overdrive modes, overshoot and independent motion testing where available.

What is the difference between FreeSync, G-SYNC and AdaptiveSync?

They relate to variable refresh rate, which allows a compatible display to follow changing frame output. AMD FreeSync, NVIDIA G-SYNC, G-SYNC Compatible and VESA AdaptiveSync use different certification or implementation approaches. Confirm the exact monitor, graphics hardware, port and driver combination.

What is a dual-mode gaming monitor?

A dual-mode monitor can provide different maximum refresh rates at different resolutions, such as a higher refresh rate when the resolution is reduced. The available modes and how they are selected vary by model, so check the monitor, graphics hardware and connection requirements.

What should I check for PS5 or Xbox gaming?

Check the console's supported resolution, refresh rate, HDR and variable-refresh output, then confirm the monitor supports those features through the intended HDMI port. Also check audio output because many monitors do not include speakers. Console capabilities and supported game modes can differ.

Connections, laptops and desk setup

Can a USB-C monitor charge my laptop?

It can if the monitor provides USB Power Delivery and its stated wattage is suitable for the laptop. The laptop's USB-C port must also support the required video and charging functions. Check both device specifications and use a compatible cable.

Why does a USB-C connection charge my laptop but show no picture?

USB-C uses one connector for several possible capabilities. The laptop port, monitor input and cable must support a compatible video path such as DisplayPort Alt Mode or Thunderbolt. Some cables are intended mainly for charging or lower-speed data, so check the specifications for every part of the connection.

How do I know whether my computer supports a monitor's resolution and refresh rate?

Check the computer or graphics card specifications, the monitor's supported timings, the selected HDMI, DisplayPort, USB-C or Thunderbolt port, and the cable. All parts of the connection must support the target resolution, refresh rate, colour depth and HDR mode.

Is HDMI or DisplayPort better for a monitor?

Neither connector is automatically better in every setup. The result depends on the versions and features implemented by the computer, monitor and cable. Compare the exact resolution, refresh rate, HDR, audio and variable-refresh requirements instead of choosing by connector name alone.

Do I need a special cable for high resolution or high refresh rate?

Use a cable that is rated and, where applicable, certified for the required connection standard and bandwidth. The monitor and source ports must support the same target mode. Very long cables, adapters and docks can add limitations, so check their specifications as part of the complete signal path.

What does a built-in KVM switch do?

A monitor KVM can let one keyboard, mouse and display switch between compatible connected computers. Implementations differ: check the required upstream USB connections, video inputs, switching controls and whether extra USB devices or charging are supported.

Can I daisy-chain two monitors from one DisplayPort connection?

Some DisplayPort monitors support Multi-Stream Transport with a DisplayPort output for daisy-chaining. The computer, operating system, graphics hardware, first monitor and connection must all support the planned number, resolution and refresh rate of displays. Do not assume every DisplayPort or USB-C monitor supports it.

What is picture-by-picture on a monitor?

Picture-by-picture displays two input sources at the same time in separate areas of one screen. It can be useful for two computers or side-by-side workflows, but supported layouts, resolutions, refresh rates, audio and USB switching vary by monitor.

Can my laptop run two or more external monitors?

That depends on the laptop model, graphics hardware, operating system, ports, dock and the resolution and refresh rate of each display. A dock cannot necessarily exceed the computer's display limits. Check the laptop manufacturer's display-support specifications before planning the setup.

Can I mount any monitor on a monitor arm?

Only if the monitor and arm are compatible. Check the monitor for a stated VESA mounting pattern, the screw requirements and the monitor weight without its stand. Confirm the arm supports that pattern, weight and screen size, and allow room for cables and movement.

Ready to choose your next monitor?

Browse the DeviceDeal monitor range and compare the specifications that matter for your setup.

Shop All Monitors