Who might use a second screen?

Document and communication multitaskers

If you regularly move between documents, messages, calendars or browser-based tools, another display gives you a way to keep more of that work visible. Check whether the screen size and position fit your desk and tasks.

Regular desk users

If you reconnect your laptop at the same desk each day, a docking monitor or dock may reduce separate display, charging and peripheral connections. Video support and charging power still need to match the exact laptop.

Flexible-location workers

If your work moves between home, office and other locations, a portable display may be easier to take along than a fixed desk monitor. Its connections and power needs matter as much as its size.

What should you check before buying?

For one fixed screen, check a direct connection before adding docking equipment. Consider a docking monitor for a compatible single-cable desk setup, a separate dock when you need more desk connections, or a portable monitor when the screen must travel.

Concern What to check Who this matters to
Visible workspace Choose a screen size and resolution that suit your documents and desk space; check the laptop’s supported display resolution. If I need documents and messages in view together, I want enough screen space without crowding my desk. Around 27% of consumers put visible workspace first.
Connection compatibility Check the exact laptop’s video-capable ports and supported external-display count, resolution and refresh rate for your intended connection. I do not want to buy a monitor or adapter that my laptop cannot drive as intended. For around 33% of consumers, connection compatibility is the primary concern.
Desk connections For a docking monitor or dock, compare its upstream charging output with the laptop’s requirement and confirm its video and peripheral ports. When I return to the same desk, I want charging and peripherals to reconnect with less cable handling. Around 27% of consumers prioritise desk integration.
Moving the screen Check the portable monitor’s dimensions, input and power requirements against the places and laptop you will use. If my work location changes, I need a second display I can bring and connect there. Portability comes first for around 13% of consumers.

Connection and setup mistakes to avoid

  • Assuming every USB-C port carries video

    A USB-C connector does not by itself establish display-output support. Apple specifies compatible protocols for its applicable USB-C and Thunderbolt display adapters, and support depends on the computer and connection.

    Check your exact laptop model, then match its video output to the monitor input, cable and any adapter.

  • Expecting a dock to bypass laptop display limits

    The supported number of displays and their resolution and refresh settings can depend on the computer, dock and connection method. Lenovo publishes configurations for named ThinkPad and dock combinations.

    Check the laptop maker’s display limits and the dock’s configuration information for the precise setup you plan to use.

  • Assuming a USB-C monitor replaces the charger

    USB-C charging output varies between monitors. A video connection and a suitable charging output are separate requirements for a single-cable desk setup.

    Compare the monitor’s stated upstream power delivery with your laptop’s documented charging requirement, and confirm that the intended connection also carries video.

  • Choosing the panel without checking its position

    A screen that fits on the desk may still need a different stand position or mounting arrangement for the work being done. Which? highlights adjustment among monitor-selection factors, while the Health and Safety Executive advises considering the whole workstation.

    Check desk space, the supplied stand’s adjustments and any clamp or mount requirements before ordering.

Relevant brands to consider

Dell

Dell lists USB-C desk, hub and portable monitors that may suit different laptop-screen arrangements.

  • Dell UK lists selected hub monitors with USB-C video input and up to 90W upstream power delivery.
  • Connections and charging output differ by model; check the particular monitor against your laptop.

Lenovo

Lenovo offers docking monitors and docks for desk setups with model-specific connection options.

  • Lenovo Support publishes display configurations for named ThinkPad and dock combinations.
  • Do not assume the same display count, video settings or charging output applies across Lenovo monitors, docks and laptops.

LG

The LG 32UN880K-B is an example to consider when an adjustable display at a fixed desk is a priority.

  • LG UK specifies a 31.5-inch 4K display, a C-clamp stand with several adjustments and USB-C power delivery up to 60W for this model.
  • Check whether your desk accepts the clamp and whether 60W meets your laptop’s charging requirement; these specifications do not describe every LG monitor.

Joybuy monitors for different setups

These monitors offer fixed-desk and portable second-screen options. Choose the screen format around where you work, then check its intended connection against your exact laptop before relying on video or charging through USB-C.

ASUS ProArt PA278CV monitor

ASUS ProArt PA278CV IPS WQHD monitor

Consider this for a fixed desk where you want an additional work display.

Its name specifies an IPS WQHD panel. Before planning a single-cable setup, confirm the monitor’s USB-C video mode and charging output against your laptop.

View on Joybuy
iiyama ProLite XUB2792UHSU-B6 monitor

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

Consider this for a regular desk where a separate 27-inch work screen fits your space.

The name specifies 4K UHD and a 16:9 display. Check that your laptop and chosen connection support the intended resolution; confirm USB-C video and charging functions separately if you need them.

View on Joybuy
ASUS ZenScreen MB166CR portable monitor

ASUS ZenScreen MB166CR FHD portable monitor

Consider a portable screen if you need a second display at more than one work location.

FHD is specified in the name. Check that your laptop has a compatible video output, particularly if you intend to connect through USB-C rather than a verified adapter.

View on Joybuy
Dahua 32-inch 4K 165Hz curved OLED monitor

Dahua 32-inch 4K 165Hz curved OLED monitor

Consider this larger display only if a fixed desk has room for it and its connection suits your laptop.

The name lists 3840 × 2160 resolution, 165Hz, a USB hub and Type-C 65W. The 65W figure does not establish USB-C video-input support; confirm that function and compare charging output with your laptop’s requirement.

View on Joybuy
UPERFECT 18.4-inch 4K QLED portable monitor

UPERFECT 18.4-inch 4K QLED portable monitor

Consider this when you want a portable second screen but have space to carry and place an 18.4-inch display.

The name specifies 3840 × 2160 resolution, USB-C, Mini HDMI and VESA mounting compatibility. Check the required video connection and power arrangement for your laptop before choosing between those inputs.

View on Joybuy

Questions about laptop second screens

Does working from home mean I need to buy an external monitor?

No. The Health and Safety Executive says that where display-screen-equipment requirements apply, the individual home workstation should be assessed to decide whether additional equipment is needed; its guidance does not say every home worker needs a monitor.

What should I check before buying a USB-C monitor or dock?

Check your exact laptop model’s video-capable ports, supported external-display count and intended resolution and refresh settings. For applicable Mac display adapters, Apple says the adapter must support DisplayPort Alt Mode, Thunderbolt 3 or Thunderbolt 4; match any other laptop and adapter to their own specifications.

Will a USB-C monitor charge my laptop?

Only if the laptop accepts charging through the intended port and the monitor provides suitable power. Compare the stated upstream power delivery of the exact monitor with your laptop’s charging requirement; check video support separately if you also want the cable to carry the display signal.

Can a dock add more displays than my laptop supports?

Do not assume it can. Apple says supported external displays depend on the Mac model and display settings, while Lenovo publishes configurations for particular ThinkPad and dock combinations. Check the specified laptop-and-dock arrangement before buying for multiple screens.

Who pays if a home-workstation assessment calls for extra DSE equipment?

The Health and Safety Executive says workers cannot be charged when a display-screen-equipment workstation assessment identifies action such as providing DSE equipment. That guidance concerns equipment identified through the applicable work assessment, not every monitor a worker might choose to buy.