Who this setup suits

Colour-managed photo and video editors

If you deliver work in sRGB, Rec.709 or P3, look for specifications and colour modes that correspond to that output. Stated calibration and uniformity features are worth examining alongside gamut coverage.

Small-desk laptop creators

A wide screen can hold an editing application beside references or a timeline, but the monitor and stand still need to leave room for your keyboard and mouse. The Health and Safety Executive advises placing the screen directly in front of you at about an arm’s length away.

Web-content editors watching their spending

If your output is chiefly sRGB, an IPS ultrawide with stated sRGB coverage may meet your selection criteria without making P3 specifications the deciding factor. Check the exact model’s colour information and connections before choosing it for your workflow.

What to check before buying

Start with the colour space your finished work needs, then measure the desk position you can actually use. Compare laptop connections only after those two requirements are clear.

BenQ PD3420Q

Consider it when: You want a flat screen with creator-oriented colour modes and uniformity support for sRGB, Rec.709 or P3 work.

Allow for: Its 825.8 mm width and 244.3 mm stand depth, as specified by BenQ UK, need a measured desk plan.

Dell UltraSharp U3425WE

Consider it when: Your colour-editing setup also calls for a Thunderbolt hub and a stated average Delta E specification.

Allow for: Its wide-gamut specifications still need to be used with the colour mode and profile appropriate to your output.

LG 34U650A-B

Consider it when: Your delivery is mainly sRGB and you want an IPS ultrawide with factory calibration and USB-C.

Allow for: If your work requires a documented accuracy target, confirm model- and mode-specific evidence before purchase.

Concern What to check Who this matters to
Colour-management confidence Match stated sRGB, Rec.709 or P3 coverage and available colour modes to your output. Check any stated accuracy target, calibration evidence and uniformity feature for the exact model. If my edits must meet a defined delivery space, I need more than a broad gamut figure to judge the screen. Around 42% of consumers put colour-management confidence first.
Desk fit and positioning Measure the monitor and stand against usable desk width and depth, including keyboard space. Check adjustment and mounting options for a central screen position. On a shallow desk, I need to sit squarely in front of the image without crowding my controls. Desk fit is the primary concern for around 33% of consumers.
Laptop setup and value Confirm the exact USB-C or Thunderbolt display, hub and charging functions against your laptop. Decide whether the stated colour features suit your work before comparing models. If I mainly edit for the web from a laptop, I want a workable connection without choosing features my output does not require. Around 25% of consumers prioritise that practical setup and value.

Buying pitfalls

  • Choosing by gamut percentage alone

    Coverage of a colour space does not, by itself, establish accuracy in the mode you will use or whether the display suits your deliverables.

    Identify your output space, then compare the exact model’s stated coverage, colour modes, accuracy information and calibration support. Keep the operating-system and application profile in that decision.

  • Assuming every 34-inch screen occupies the same space

    Monitor width and stand depth vary. A screen can fit across a desk yet leave too little room to place it comfortably in front of you.

    Check full dimensions, stand adjustment and any mounting requirements before ordering. The Health and Safety Executive advises a central screen position, with the top near eye level and the screen about an arm’s length away.

  • Expecting every USB-C port to do the same job

    A USB-C connection alone does not establish the display, hub and charging functions your laptop needs.

    Compare the monitor’s specified connection and power-delivery functions with your laptop’s display-output and charging requirements.

  • Treating a similar listing as the same monitor

    Closely named models and variants need not have identical colour, connection or stand specifications.

    Match the full brand and model number to the product-detail page, then check the specifications, power details and warranty terms relevant to the listing.

Brands and models to consider

BenQ

The flat, 34-inch PD3420Q is a creator-oriented 3440 × 1440 model for work across specified sRGB, Rec.709 and P3 colour spaces.

  • For the PD3420Q, BenQ UK states 100% sRGB and Rec.709, 98% P3, average Delta E ≤3, a factory calibration report and uniformity technology.
  • BenQ specifies a width of 825.8 mm and a stand depth of 244.3 mm; check both against the usable desk space. Its listed refresh rate is 60 Hz.

Dell

The 34.14-inch UltraSharp U3425WE combines a 3440 × 1440 IPS Black display with a Thunderbolt hub-focused setup.

  • Dell UK lists 98% DCI-P3 and Display P3, 100% sRGB and BT.709, average Delta E <2 and a 120 Hz refresh rate for the U3425WE.
  • The stated gamut and accuracy figures do not remove the need to select the appropriate colour mode and profile for the intended output.

LG

The 34-inch 34U650A-B is a 3440 × 1440 IPS ultrawide with features relevant to sRGB-led editing and a laptop setup.

  • LG UK specifies sRGB 99% (typical), factory calibration, USB-C and a 100 Hz refresh rate for the 34U650A-B.
  • If your workflow requires a particular Delta E target or USB-C charging capability, confirm the applicable specifications for this exact model before choosing it.

Joybuy products

Related products coming soon.

Common questions

Is 3440 × 1440 enough for comparing colour edits?

A 3440 × 1440 ultrawide can give you room to place an editor beside references, but resolution does not establish colour accuracy. Match the exact monitor’s stated gamut, accuracy information and selected colour mode to the space in which you deliver work.

Will a 34-inch ultrawide fit a small desk?

It can, if the exact monitor and stand leave you a comfortable working position as well as enough room for your controls. BenQ UK specifies the PD3420Q at 825.8 mm wide and 244.3 mm deep with its stand; measure your usable desk space rather than judging by diagonal size alone.

Do I need a calibrator if a monitor is factory calibrated?

Factory calibration does not replace checking the colour workflow you use now. If colour matching affects client approval or other consequential decisions, plan how you will profile and verify the display over time with a compatible measurement device and software.

Are there UK workplace setup requirements for an ultrawide?

For workers who use display screen equipment daily as part of their normal work for continuous periods of an hour or more, the UK Health and Safety Executive says employers must carry out a workstation assessment. Its posture guidance advises placing the screen directly in front of the user, with the top near eye level and the screen about an arm’s length away; it does not prescribe an ultrawide size.

Should I choose a curved or flat screen for colour editing?

Choose the shape alongside the exact model’s colour specifications and your intended viewing position, rather than assuming either shape is more colour accurate. The BenQ PD3420Q is flat and the Dell UltraSharp U3425WE is curved; check whether the screen can sit centrally at a comfortable distance on your desk.