Check your laptop model’s supported video outputs and external-display limit before choosing a second screen: a USB-C socket alone does not establish that it can carry video. For one monitor and few accessories, use a compatible direct cable or adapter. Consider a dock or USB-C hub monitor when you also want charging and peripherals through one desk connection, provided its display and power specifications match the laptop.
If documents, spreadsheets or meetings feel cramped on your laptop at a fixed desk, start with one compatible monitor connection. Which? also highlights monitor ports and stand adjustment as factors worth checking before purchase.
If you regularly connect and disconnect your laptop, a dock or USB-C hub monitor may bring the screen, charging and other peripherals into one desk connection. Check the laptop’s video support and charging requirements against the exact device.
If the extra display needs to move with you, a portable monitor offers a different arrangement from a fixed desk screen. For example, Lenovo specifies DisplayPort Alt Mode and Power Delivery requirements for its ThinkVision M14; check the requirements of whichever model you choose.
For documents, spreadsheets and meetings, establish how your laptop can output video first. Then decide whether fixed-desk adjustment, fewer cable connections or portability matters most to you.
| Concern | What to check | Who this matters to |
|---|---|---|
| Laptop-to-display compatibility | Check the laptop model’s video-output specification and external-display limit, then match the monitor input and cable. For USB-C video, confirm the required protocol. | If I cannot establish that my laptop will send a picture through the intended connection, the rest of the setup cannot solve my workspace problem. Around 36% of consumers put compatibility first. |
| Fixed-desk usability | Compare the screen’s available height, tilt and swivel adjustments with your desk layout, alongside its inputs. | When I work at the same desk each day, I want to position the extra screen where I can use it comfortably. For around 29% of consumers, desk usability is the primary concern. |
| One-cable desk connection | Check the dock or hub monitor’s documented display configuration, power delivery and required peripheral connections against the laptop. | Disconnecting and reconnecting several devices interrupts my desk routine; I would rather connect the display, charging and accessories together. This is the main priority for roughly 21% of consumers. |
| Portable workspace | Check the portable monitor’s size, stand and stated USB-C video and power requirements. | My second screen needs to travel between work locations, even if that means choosing a smaller display than I would keep on a desk. Portability comes first for around 14% of consumers. |
USB-C describes the connector, not every function it supports. Which? notes that DisplayPort video support depends on the particular USB-C connection.
Look up your exact laptop model’s video-output specification and supported external-display count before choosing a USB-C monitor, cable or dock.
Microsoft explains that a splitter duplicates one signal rather than creating two independent display signals.
For two separately extended displays, check the laptop’s documented display limit and the supported configuration of any dock or other display hardware.
A screen that fits the desk still needs suitable placement and a connection to the laptop. Which? identifies height, tilt and swivel adjustment as useful monitor considerations.
Check the exact model’s adjustments and inputs against your desk position and intended connection before deciding.
Dell and LG specify different USB-C power-delivery outputs on their cited monitor models; the figure for one monitor cannot establish what another will supply.
Compare the exact dock or monitor’s stated output with your laptop maker’s charging requirement, including any conditions that apply during use.
If the chosen connection cannot meet that requirement, you may still need to use the laptop’s original charger.
Dell’s Pro P2726HE is an example of a USB-C hub monitor for a fixed desk.
LG’s 24BA650-B illustrates a fixed-desk monitor with USB-C charging and an adjustable stand.
Lenovo has examples of both a fixed-desk USB-C dock and a portable second screen.
No. Which? explains that DisplayPort video support depends on the USB-C connection. Check your exact laptop model’s specification for video output and any protocol required by the monitor or adapter.
A direct cable is the simpler choice when a supported laptop output can connect to one monitor and you do not need other desk connections. Consider a dock if you also want charging or peripherals through one connection, then check its documented display and power support against your laptop.
A splitter ordinarily duplicates the same signal rather than creating two independent desktops, according to Microsoft. For two extended external screens, check the laptop’s supported display count and the documented configuration of any dock or display hardware.
Check that the monitor is set to the input you used and that the cable is secure, then check the computer’s display settings. Microsoft advises isolating the connection by disconnecting accessories such as docks and adapters while troubleshooting.
They can apply to permanent or long-term home working, according to the Health and Safety Executive. Where the Display Screen Equipment Regulations apply, the employer must assess the workstation and reduce identified risks; that assessment, rather than the purchase of a particular monitor, determines what needs addressing.