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LG 27U631A-B 27-inch QHD (2560 x 1440) IPS Computer Monitor, 100Hz, 5ms, HDR10, Reader Mode, Flicker Safe, HDMI, USB Type-C 15W PD, Black8.6Our score 4 photos
LBrandLGLLG162 products in our catalogSee all LG products →ID DBD-11155

LG 27U631A-B 27-inch QHD (2560 x 1440) IPS Computer Monitor, 100Hz, 5ms, HDR10, Reader Mode, Flicker Safe, HDMI, USB Type-C 15W PD, Black

8.6/10 our score 4.3 (102 ratings on Amazon)

Vivid Visuals at Wide Viewing Angles - Experience exceptional picture quality with the 27" QHD (2560x1440) display, with IPS technology for

Aspect Ratio16:9Brightness250 cdDisplay Resolution Maximum2560 x 1440Refresh Rate100 hertzResolutionQHD Wide 1440pResponse Time5 milliseconds

About this item

  • Vivid Visuals at Wide Viewing Angles - Experience exceptional picture quality with the 27" QHD (2560x1440) display, with IPS technology for vivid and vibrant visuals - even at wider viewing angles.
  • 100Hz Smoother, Seamless Visuals - With a 100Hz refresh rate and 5ms(GTG) response time, on screen visuals are rendered clearly for ultra-smooth motion and fluidity.
  • Bold Color on a 27" Screen - Immerse yourself in a world of brilliant color from HDR10 that helps enhance picture quality and up to 99% sRGB color gamut expression to make games visually pop.
  • Multiple Devices-One Cable - Seamlessly connect to external devices or charge your laptop with the convenience of USB Type-C with up to 15W power delivery.
Category: MonitorsRanked #99 of 740 in Monitors
8.6Our score
Our verdict

Vivid Visuals at Wide Viewing Angles - Experience exceptional picture quality with the 27" QHD (2560x1440) display, with IPS technology for

Ranked #99 in Monitors · 4 things we like

Quick answer The LG 27U631A-B 27-inch QHD scores 8.6/10 with us. Amazon owners rate it 4.3 out of 5 across 102 reviews, in line with the 4.3 average of the 494 products we track in Monitors. It was listed at $169.99 on Amazon when we last checked in September 2026. Key facts: aspect ratio 16:9, brightness 250 cd, display resolution maximum 2560 x 1440.

Immerse yourself in stunning visuals with the 27" QHD (2560x1440) IPS display, designed to deliver exceptional clarity and vibrant color with HDR10 support and up to 99% sRGB coverage. Whether you’re working, gaming, or streaming, this monitor offers vivid colors and detail for an gorgeous viewing experience. The 100Hz refresh rate, Dynamic Action Sync, and Black Stabilizer are gaming specs and features that ensure that are ideal when you need to take a game break.

Connectivity is simplified with USB Type-C which enables quick charging and data transfer through a single cable, reducing clutter and optimizing your workspace. The 3-side virtually borderless design maximizes screen real estate, providing an immersive viewing experience with minimal distractions. For added comfort during extended use, LG’s Flicker Safe and Reader Mode technologies help reduce eye strain, allowing for more co

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Product information

24 specifications
Additional FeaturesAnti Glare Screen, Dynamic Action Sync, High Dynamic Range, Tilt Adjustment
Aspect Ratio16:9
Brightness250 cd
Color Gamut0.99
Contrast Ratio1000:1
Display Resolution Maximum2560 x 1440
Display TechnologyIPS
Display TypeLED
Item Dimensions D x W x H8.46"D x 24.14"W x 17.91"H
Item Weight9.7 pounds
Native Resolution2560x1440
Number of Component Outputs1
Picture Quality Enhancement TechnologyHDR10
Pixel Pitch0.23
Refresh Rate100 hertz
ResolutionQHD Wide 1440p
Response Time5 milliseconds
Screen FinishMatte
Screen Size27 inches
Specific Uses For ProductMultimedia
Total Number of HDMI Ports1
Total USB 3.0 Ports1
Total Usb Ports1
Viewing Angle178 degrees

Pros & cons

What we like
  • Vivid Visuals at Wide Viewing Angles - Experience exceptional picture quality with the 27" QHD (2560x1440) display, with IPS technology for vivid and vibrant visuals - even at wider viewing angles.
  • 100Hz Smoother, Seamless Visuals - With a 100Hz refresh rate and 5ms(GTG) response time, on screen visuals are rendered clearly for ultra-smooth motion and fluidity.
  • Bold Color on a 27" Screen - Immerse yourself in a world of brilliant color from HDR10 that helps enhance picture quality and up to 99% sRGB color gamut expression to make games visually pop.
  • Multiple Devices-One Cable - Seamlessly connect to external devices or charge your laptop with the convenience of USB Type-C with up to 15W power delivery.
What could be better

    LG 27U631A-B 27-inch QHD: questions & answers

    Is the LG 27U631A-B 27-inch QHD worth buying?

    Yes, it is one of the stronger picks in its group. We score the LG 27U631A-B 27-inch QHD 8.6 out of 10. Amazon owners rate it 4.3 out of 5 across 102 reviews, in line with the 4.3 average of the 494 products we track in Monitors.

    How much does the LG 27U631A-B 27-inch QHD cost?

    It was listed at $169.99 on Amazon when we last checked in September 2026. Amazon prices change daily, so use the price button on this page to see the current figure.

    What are the key specs of the LG 27U631A-B 27-inch QHD?

    Aspect Ratio: 16:9; Brightness: 250 cd; Display Resolution Maximum: 2560 x 1440; Refresh Rate: 100 hertz; Resolution: QHD Wide 1440p; Response Time: 5 milliseconds. All 24 specifications are in the product information table on this page.

    What are good alternatives to the LG 27U631A-B 27-inch QHD?

    Similar, well-rated products in our catalog: LG 24U411A-B 24-inch Full HD (9.2/10, 4.6 stars from 939 owners); LG 27U411A-B 27-inch Full HD (9.2/10, 4.6 stars from 939 owners); LG 32UR500K-B Ultrafine 32-inch 4K UHD (8.8/10, 4.4 stars from 509 owners).

    LG 24U411A-B 24-inch Full HDLG 27U411A-B 27-inch Full HDLG 32UR500K-B Ultrafine 32-inch 4K UHD

    Customer reviews

    All reviews on Amazon
    4.3102 global ratings
    5 star67%
    4 star11%
    3 star11%
    2 star0%
    1 star11%

    Breakdown from the 9 most helpful reviews we imported.

    R
    RWeese
    Verified purchaseApril 20, 2026
    The perfect companion for a MacBook

    Great picture for use with my MacBook M2. Connects via Thunderbolt and also charges your MacBook. Picture quality looks great. I use it for graphics and I am very pleased with the display of colors and lighting.

    A
    Andi
    Verified purchaseJune 30, 2026
    Perfect size

    We have two now side by side. Perfect t size for our home office desk.

    F
    Fashionista
    Verified purchaseJune 17, 2026
    Not compatible with Mac’s color scale

    This display is nice for regular use but it is not good for Photoshop or high quality programs. It is not good with Mac color grading, and yes I tried all the features and settings.However if you’re using it for other purposes that don’t require accurate color grading, then this can be the right one for you at a reasonable price. I was missing the usb-C and the coloring wasn’t the best so I gave it 3 stars.

    S
    Skylar Gomez
    Verified purchaseJuly 8, 2026
    Great budget-friendly monitor

    Great monitor for the price, have had it for about 3 months now and no issues. Colours look great, plenty bright even with lots of natural light, and the build feels sturdy. 100Hz is a big improvement over 60, and I honestly don't see much point in going higher so it's perfect for a budget display. The joystick-type controls are easy to use but I wish they required a slightly stronger touch to prevent accidental inputs. Only other downside is no display port, so keep that in mind before buying.

    L
    L. Cadena
    Verified purchaseApril 18, 2026
    Perfect

    Fantastic purchase. Clean, clear, crisp. Just what I needed and more! Hooked up to my laptop and is making things so much easier. Recommend highly

    C
    Crystalyn Nova Persico
    Verified purchaseJune 29, 2026
    The Item is cheep and the service is BAD!!!!

    Rating 1-10, very poor product and company!!! I give it a 0. The screen stopped working after six months. The product was damaged on the back, with a missing plastic piece and no screws. We reached out to support. Did not get any help; we were told they can not schedule a repair for the non-working screen because of the damage to the plastic. I told them that the damage was due to the lack of support because of the missing screws we never got. We made it work without the screws, but over time the weight of the screen must have cracked some of the plastic. The platform still holds the screen. B

    A
    AMG
    Verified purchaseMarch 19, 2026
    Great picture

    Very nice! Bought a 2nd one.

    A
    Amazon Customer
    Verified purchaseJuly 6, 2026
    Great for office use.

    Bought two for my office. A little light on features compared to a higher brand (nothing much to speak of in settings to tinker with via the manual toggle) but for office use, not a big deal at all. The higher resolution and refresh rate makes working much more enjoyable, and the HDR is bright and pops. Great monitors if you are moving from older 1080p/60Hz monitors. Haven't tried gaming as it's not my use case, so no idea how they do there.

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.