Who is an external monitor for?

Document-heavy laptop workers

If you spend long periods reading, writing or arranging several windows at a fixed desk, consider usable screen area, placement and the display mode your laptop can support. Which? covers both limited-space and home-office monitor use.

Colour-sensitive visual workers

For photography, video, design or print-oriented work, define the colour workflow before prioritising a larger screen. Check the exact monitor’s stated colour capabilities, calibration options and connection against that workflow.

Shared-desk and one-cable users

If you reconnect a laptop at the same desk regularly, monitor-based charging and peripheral connections may reduce cable changes. That arrangement depends on the laptop’s video protocol and whether the monitor’s charging output suits it.

What matters when choosing a screen and connection?

Direct HDMI or DisplayPort

Choose when: Your laptop has a compatible video output and you mainly need one external screen.

Trade-off: Laptop charging and peripherals remain separate unless another connection handles them.

USB-C hub monitor

Choose when: You want fewer cable changes and your laptop supports the monitor’s USB-C display connection.

Trade-off: A USB-C socket alone does not establish video support or adequate laptop charging; both depend on the exact devices.

Adaptor or dock

Choose when: The laptop’s supported video output and the monitor’s input do not directly match.

Trade-off: The adaptor adds another display-mode compatibility check.

ConcernWhat to checkWho this matters to
Documents and multiple windows Compare screen size, native resolution and stand adjustment with your desk space; confirm the laptop supports the intended display mode. I need room to read documents and keep several applications visible without losing a comfortable screen position. Around 33% of consumers put this text-workspace need first.
Visual-work suitability Identify your output workflow, then check the exact model’s stated colour space, calibration options and laptop connection. For photography, design or video work, I need to assess whether the screen fits my colour workflow, not just its size. This is the primary concern for around 25% of consumers.
One-cable desk setup Check the laptop’s USB-C display protocol and charging requirement against the monitor’s video support and Power Delivery output. When I reconnect my laptop at a shared desk, I want fewer cable changes without giving up the display or charging arrangement I need. Around 25% of consumers prioritise that one-cable setup.
Connection compatibility Match the laptop’s ports and external-display limits to the cable or adaptor’s supported resolution and refresh rate. I want to use my existing laptop and connections, so an unsuitable adaptor could leave the new screen short of the intended display mode. Compatibility and reuse come first for around 17% of consumers.

Common buying mistakes

  • Assuming USB-C means video and laptop charging

    USB-C display support depends on the devices’ video protocols, while monitor Power Delivery output varies by model.

    Compare your exact laptop’s display and charging requirements with the monitor’s stated USB-C functions and output.

    If they do not match, you may need a separate charger, compatible cable or different connection route.

  • Choosing by screen size alone

    A larger panel may not suit the desk, the work or the display mode supported by the laptop.

    Consider native resolution, desk footprint and stand adjustment alongside size, then check the laptop’s supported output.

  • Treating an adaptor as a universal fix

    An adaptor has its own limits; matching connector shapes do not establish the resolution, refresh rate or other features available through it.

    Check its specification for your exact input, output and intended display mode before ordering.

    An unsuitable adaptor may mean changing the cable, adaptor or connection route.

  • Prioritising specialist colour features without a workflow

    Colour-managed features matter differently to visual work and document-focused use; they can also add setup work.

    Define the software and intended output first, then assess the exact monitor’s colour-space and calibration claims against them.

Relevant brands for reference

Dell

Dell has USB-C hub monitors aimed at fixed productivity desks.

  • Dell UK specifies up to 90W USB-C Power Delivery and RJ45 Ethernet for the P3425WE.
  • Those connections and charging specifications are model-specific; check the particular monitor and laptop together.

BenQ

BenQ positions its AQCOLOR and Creative Pro lines for photography, design and video workflows.

  • BenQ describes colour and calibration features for these lines, including Adobe RGB for the specified PD2732U model.
  • Match the exact model’s stated capabilities to your colour workflow rather than applying line-wide claims to every BenQ screen.

LG

LG lists USB-C monitors for fixed desks, including models with adjustable Ergo-style stands.

  • LG UK lists a 60W USB-C connection for the 27QN880 and 90W Power Delivery for the 27U730A-B.
  • Charging output, resolution and stand adjustments differ by model; check the exact configuration.

Joybuy monitor choices

These monitors offer screen and connection choices for a fixed laptop desk. Choose the display for your main task, then check its stated inputs against your laptop; do not rely on USB-C for video or charging without confirming both devices’ capabilities.

BenQ MA270UP Nano Glossy monitor

BenQ MA270UP Nano Glossy 27-inch 4K UHD monitor

Consider this for a fixed desk where a larger display and adjustable placement matter. Its name specifies an IPS panel, USB-C and a height-adjustable stand; check your laptop’s video and charging requirements before planning a one-cable setup. Consider whether the glossy finish suits your workspace lighting.

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ASUS ProArt PA248CRV monitor

ASUS ProArt PA248CRV WUXGA IPS monitor

Consider this model if your fixed-desk choice depends on its stated visual-work and positioning features. It is identified as a WUXGA IPS monitor; confirm the exact connections, colour-workflow requirements and laptop charging compatibility before choosing it for a one-cable desk.

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iiyama ProLite XUB2792UHSU-B6 monitor

iiyama ProLite XUB2792UHSU-B6 27-inch 4K UHD monitor

Consider its 27-inch 4K UHD screen for a desk used for documents or multiple windows, provided your laptop and connection support the intended display mode. Check the monitor’s USB-C video and charging functions separately if those are part of your setup.

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ASUS ProArt PA278CV monitor

ASUS ProArt PA278CV WQHD IPS monitor

Consider this WQHD IPS model for a fixed desk used for document or visual work. If you intend to connect and charge a laptop through USB-C, confirm the model’s video protocol and Power Delivery output against that laptop’s requirements.

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Dell P2425H monitor

Dell P2425H 24-inch Full HD IPS monitor

Consider this 24-inch screen where desk space and document work shape the choice. Its stated Full HD resolution is 1920 × 1080, and its name lists HDMI and DisplayPort connections; check the laptop’s supported output before connecting it. Do not assume the listed USB-C port carries video or charges the laptop.

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Frequently asked questions

How do I know whether my laptop can run a particular monitor?

Check the specifications for your exact laptop model and the connection you intend to use, including supported external-display count, resolution and refresh rate. Microsoft Support notes that connection method and display count can affect the available mode on Surface devices; Apple Support likewise directs Mac users to their device specifications.

Will one USB-C cable carry video and charge my laptop?

Only if the laptop and monitor support the required USB-C display connection and the monitor’s Power Delivery output suits the laptop. Check the exact port, cable and monitor specifications rather than relying on the presence of USB-C alone.

When should I use an adaptor?

Use an adaptor when a supported laptop video output does not directly match the monitor input, provided the adaptor supports your intended resolution, refresh rate and any other required display features. Apple Support advises checking adaptor specifications for supported resolutions and connection details.