Who this guide is for

People working at a permanent desk

If you want documents and communication visible together, or need a clearer display for visual work, compare screen size, resolution and positioning before choosing a larger monitor. Which? and Samsung UK both discuss screen space and the type of work when considering a home-office display.

Laptop users looking to simplify their setup

If you want your monitor to connect with your laptop and peripherals, check the computer’s supported video output and the monitor’s upstream USB-C functions. Dell’s connection guidance and the manufacturers’ model specifications distinguish these functions from the shape of the connector alone.

People working in shared or changing spaces

If your screen needs to move between work areas or be put away after work, consider a portable display and check its connection and any software requirements. Which? describes a range of home-working spaces, while ASUS specifies the requirements for its ZenScreen MB16ACV.

What to consider before buying

A permanent external monitor

Choose it when: you want a second screen to stay on your desk for documents, communication or visual tasks.

Trade-off: a larger screen takes up more desk space, and a conventional video connection may leave charging and peripherals on separate cables.

A USB-C monitor

Choose it when: your computer supports the required USB-C video connection and you want the monitor to provide laptop power or hub functions.

Trade-off: charging capacity and video support vary by model; check the upstream port and compare its Power Delivery rating with your laptop’s requirements.

A portable monitor

Choose it when: you need to carry the additional screen or clear a shared table after work.

Trade-off: a smaller display has less physical viewing area, and some connection methods may require software support.

A monitor arm or separate cable

Choose it when: you need a different screen position or a cable that matches your computer’s output and monitor’s input.

Trade-off: an arm adds mounting and load requirements, while a cable or adapter cannot resolve an unsupported video connection.

Which? and Samsung UK guidance highlight screen space, connections and adjustment as useful things to compare. The rows below help you weigh those factors against the way you use your desk.

Concern What to check when buying Who this matters to
Screen space and detail Compare screen size with native resolution and the space available on your desk. I want documents and communication visible together, so usable screen space and detail lead my choice; around 31% of consumers put this need first.
Computer connection and charging Match the computer’s video output to the monitor input; check upstream USB-C charging separately. I want to connect my laptop and peripherals without relying on an unsuitable port; around 25% of consumers prioritise connection simplicity.
Desk fit and positioning Check the monitor’s full dimensions with its stand, adjustment range and any arm-mount requirements. I need the display to fit and sit comfortably on my desk; around 25% of consumers put positioning and desk fit first.
Moving or packing away Check the display’s size, stand or mounting method, and whether your computer needs software for the connection. I work in different spaces or need to clear the table after work, so portability matters most; around 19% of consumers prioritise moving or packing away their screen.

Common buying pitfalls

  • Assuming every USB-C port does the same job

    A monitor can have separate upstream and downstream USB-C ports. On the Dell P2725HE, the downstream USB-C port is data-only and supplies up to 15W; it is not the laptop video and charging input.

    Check the port diagram and your computer’s documentation, then connect through the input intended for your display and laptop.

    You may still need a suitable cable, adapter or separate laptop charger, depending on the connections and power requirements of your setup.

  • Choosing by screen diagonal alone

    Two monitors with the same diagonal can have different native resolutions, and the stand takes up space as well as the panel.

    Compare native resolution and the complete monitor dimensions with your desk layout and the work you want visible.

  • Assuming a monitor arm fits any screen and desk

    Mounting patterns, screen weight and depth, arm load limits and desk attachment all affect whether a particular combination is suitable. A portable display may use a different mounting interface from a conventional desktop monitor.

    Check the exact screen and arm specifications, including the monitor’s weight without its stand and the desk attachment limits.

    A compatible mount or adapter may need to be sourced separately if the screen and arm do not share a suitable mounting interface.

  • Overlooking software requirements for a portable display

    ASUS specifies a driver for USB-A operation on the ZenScreen MB16ACV. That connection may not suit a work computer where software installation is restricted.

    Check driver support and installation permissions, or use a connection your computer supports without that requirement.

Relevant monitor and accessory brands

BenQ

The GW2790QT is a model-specific example of a QHD home-office monitor with USB-C and an adjustable stand.

  • BenQ UK specifies a 2560 × 1440 resolution, stand adjustment and upstream laptop charging for this model.
  • Check desk fit and computer compatibility; the specifications do not establish independent colour-accuracy performance.

Dell

The P2725HE illustrates an FHD USB-C hub configuration with HDMI, DisplayPort and Ethernet.

  • Dell UK specifies up to 90W upstream laptop power for this model.
  • Its 27-inch FHD resolution is a different pixel workspace from a 27-inch QHD display. The downstream USB-C port is data-only and supplies up to 15W.

ASUS

The ZenScreen MB16ACV is a portable-display example for workspaces where a screen may need to move or be put away.

  • ASUS specifies a 15.6-inch Full HD IPS screen, a fold-out kickstand and hybrid USB connectivity for this model.
  • USB-A operation requires a driver, and its mounting method differs from conventional desktop VESA displays.

Ergotron

The LX Sit-Stand Desk Arm is an accessory option for repositioning a compatible monitor.

  • Ergotron’s specifications for the 45-360-026 variant include desk-clamp and load conditions.
  • The clamp is specified for desk thickness up to 65 mm, and monitor depth can affect capacity. Check the exact arm variant and screen compatibility.

Joybuy monitor options

The products below are external monitors for permanent home-office desks. Compare their stated screen sizes and resolutions with your desk space and the connections your computer supports.

PRO MP273Q E14 27-inch WQHD 144Hz IPS monitor

PRO MP273Q E14 27-inch WQHD 144Hz IPS Monitor

A 27-inch WQHD option for a permanent desk where you want to compare screen area with pixel resolution.

27-inch; 2560 × 1440 (WQHD); 144Hz; IPS.

Joybuy
AOC Q32V4 31.5-inch QHD IPS monitor

AOC Q32V4 31.5-inch QHD IPS Monitor

Consider this larger-format option if your desk can accommodate its stated screen size.

31.5-inch; 2560 × 1440; IPS; built-in speakers.

Joybuy
ASUS ProArt PA278CV IPS WQHD monitor

ASUS ProArt PA278CV IPS WQHD Monitor

A WQHD external-monitor option for comparing a higher-resolution workspace with your desk setup.

IPS; WQHD.

Joybuy
ASUS ProArt PA24ACRV IPS QHD monitor

ASUS ProArt PA24ACRV IPS QHD Monitor

A QHD option to consider if you are comparing a smaller display format with the space available on your desk.

IPS; QHD.

Joybuy
Acer Nitro VG272UW2bmiipx 27-inch QHD IPS monitor

Acer Nitro VG272UW2bmiipx 27-inch QHD IPS Monitor

A 27-inch QHD option for a desk-based setup; check whether its stand’s adjustment suits your preferred screen position.

27-inch; QHD; IPS; 240Hz. The stand is described as tilt-adjustable only.

Joybuy

Second-monitor questions answered

Does a USB-C connector alone tell me whether a monitor works with my laptop?

No. Check the functions documented for the computer port and monitor input, then choose a supported cable or adapter. Also check whether the connection provides video and the laptop charging power you need; ASUS specifies driver-based USB-A operation for the ZenScreen MB16ACV.

How do I show different windows on my second screen?

In the Windows workflow described by Dell, open Settings, then System and Display, and select Extend these displays under Multiple displays. Arrange the display icons to match the screens’ physical positions; Duplicate shows the same content on both.

Will a portable monitor fit an ordinary monitor arm?

Not automatically; compare the exact mounting interfaces. ASUS specifies a quarter-inch threaded mounting hole for the ZenScreen MB16ACV, while BenQ specifies a 100 × 100 mm VESA mount for the GW2790QT.

How should I clean a computer monitor?

Follow the instructions for your exact monitor. Dell’s general guidance recommends powering down and unplugging it, starting with a dry microfibre cloth, and using a cloth lightly dampened with distilled water for persistent marks. Do not spray liquid directly onto the screen or use household window cleaner.

Must every home worker buy a second monitor to comply with DSE rules?

No. Official guidance does not prescribe a second monitor for every home worker. Where display screen equipment duties apply, the employer assesses the workstation and decides what equipment is needed for that worker’s circumstances; HSE guidance applies in Great Britain, while HSENI provides separate guidance for Northern Ireland.