Skip to main content
LG 27US550-W 27" 4K (3840x2160) UHD Ultrafine IPS Computer Monitor with HDR10, DCI-P3 90%, Adjustable Stand, 3-Side Borderless Design, White

LG 27US550-W 27" 4K (3840x2160) UHD Ultrafine IPS Computer Monitor with HDR10

Bottom line: The LG 27US550-W 27" 4K UHD Ultrafine IPS Computer Monitor with HDR10 is a specs-and-price decision rather than a crowd-consensus one in the gaming monitors category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Check price on Amazon → Compare to similar gaming monitors

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For gaming and productivity monitors, synthesises manufacturer specs against measured monitor reviews (RTINGS, Monitors Unboxed) rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. How we check display specs →

Before you buy

  • Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored LG 27US550-W 27" 4K UHD Ultrafine IPS Computer Monitor with HDR10 using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming monitors category. Compare with similarly-priced alternatives in the gaming monitors category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming monitors of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • UltraClear 27 Inch UHD 4K Monitor with IPS Panel: This LG 27 inch monitor delivers crisp 3840x2160 resolution with an IPS screen for vibrant, consistent color from any angle. An ideal 4K monitor for professionals who need clarity for editing, design, and productivity.
  • HDR10 + DCI-P3 90% – Stunning Color Accuracy: With HDR10 support and 90% DCI-P3 color coverage, this 27 inch 4K monitor produces rich contrast and lifelike colors. Perfect for photo editors, video creators, and anyone seeking high-fidelity visuals.
  • Upgraded 300-Nit Brightness – Clear in Any Light: Whether used in a bright office or daylight-filled room, this computer monitor ensures excellent visibility with upgraded 300-nit brightness. Text stays sharp, and visuals remain vibrant, even in challenging lighting.
  • 3-Side Virtually Borderless – Ideal for Multi-Monitor Setups: Create a seamless viewing experience with this 4K 27 inch monitor’s ultra-slim 3-side borderless design. Maximize workspace and enjoy immersive visuals when using two or more monitors side-by-side.
  • LG Switch – Simplify Your Workflow: Use LG Switch to toggle between multiple inputs effortlessly—perfect for multitasking and hybrid workstations.

Full Specifications

BrandLG
ColorWhite
Shapewidescreen
Voltage25.9 Kilovolts
Brightness300
Model NameLG 27" 4K UHD UltraFine IPS monitor
Resolution4K UHD 2160p
Unit Count1.0 Count
Pixel Pitch0.01
Screen Size27 Inches
Aspect Ratio16:9
Display TypeIPS
Model Number27US550-W
Refresh Rate60 Hz
Adaptive SyncFreeSync
CompatibilitySwitch
Mounting TypeRack Mount
Response Time5 Milliseconds
Screen FinishMatte
Series Number27
Full listing titleLG 27US550-W 27" 4K (3840x2160) UHD Ultrafine IPS Computer Monitor with HDR10, DCI-P3 90%, Adjustable Stand, 3-Side Borderless Design, White

Ready to buy?

LG 27US550-W 27" 4K (3840x2160) UHD Ultrafine IPS Computer Monitor with HDR10, DCI-P3 90%, Adjustable Stand, 3-Side Borderless Design, White is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Gaming Monitors

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
LG 27US550-W 27" 4K (3840x2160) UHD Ultrafine IPS Computer Monitor with HDR10, DCI-P3 90%, Adjustable Stand, 3-Side Borderless Design, White
View on Amazon →