LG 27U631A-B 27" Black 2025

★★★★★ 4.6 (308)

A 27-inch 1440p IPS panel with 100Hz refresh and 5ms response time pairs with a USB-C port that delivers 15W power delivery. Slim bezels and VESA compatibility offer flexible mounting, while the 99% sRGB color gamut and HDR10 support ensure vivid visuals for office work. This monitor suits home-office users and students who need a crisp 1440p panel with smooth scrolling and single-cable USB-C connectivity for their laptops.

Screen 27
Resolution 2560x1440
Panel IPS
Refresh 100 Hz
response time ms 5
adaptive sync Adaptive-Sync
HDR HDR10
LG 27U631A-B 27" Black 2025 monitor
65 Overall Score
Also available in:

Snapshot

Pros & Cons

Pros

  • Strong social proof (96th percentile) 96th
  • Strong feature (72th percentile) 72th
  • Strong display (69th percentile) 69th

Cons

  • Below average user sentiment (29th percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews — so you can see whether early praise held up.

Owner sentiment has improved over time
72/100Our AI sentiment readlow confidence · 5 sources · May 2026
1★2★3★4★5★Q2 '25: 3.5★ · 4 reviewsQ3 '25: 4.9★ · 18 reviewsQ4 '25: 4.7★ · 18 reviewsQ1 '26: 4.8★ · 21 reviewsQ2 '26: 4.9★ · 8 reviews1141818218Q4 '21Q3 '22Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 71 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

Color 56.6
Portability 63.7
Display 68.9
Feature 72.2
User Sentiment 28.5
Ergonomic 48.4
Performance 53.2
Connectivity 45.9
Social Proof 95.5

Specifications

Full Specifications

Display

Size 27"
Resolution 2560 (QHD)
Panel Type IPS
Aspect Ratio 16:9
Curved No

Performance

Refresh Rate 100 Hz
Response Time 5
Adaptive Sync Adaptive-Sync

Color & HDR

Brightness 250 nits
Color Gamut 99% sRGB
Color Depth 16.7 Million
HDR HDR10
HDR Support HDR10

Connectivity

HDMI Ports 1
USB-C 1
Speakers No
Headphone Jack Yes

Ergonomics

Height Adjustable No
Tilt Yes
Swivel No
Pivot No
VESA Mount 100x100

Features

Webcam No
Touchscreen No
PIP/PBP No
Weight 4.4 kg / 9.7 lbs

vs Competition

Spec LG 27U631A-B 27" ASUS TUF Gaming VG27VQMY Dell S2725QC S2725QC SANSUI 27 inch MSI MAG MAG 275UPD E14 Alienware AW-Series AW2724HF
Screen Size 27 27 27 27 27 27
Resolution 2560x1440 1920 x 1080 3840 x 2160 2560 x 1440 3840x2160 1920 x 1080
Panel Type IPS VA IPS IPS IPS IPS
Refresh Rate 100 240 120 200 288 360
Response Time Ms 5 1 8 1 1 0.5
Adaptive Sync Adaptive-Sync FreeSync Premium FreeSync Premium FreeSync FreeSync FreeSync Premium
Hdr HDR10 HDR10 HDR HDR DisplayHDR 400 HDR10
Compare Compare Compare Compare Compare
Product ColorCompactDisplayFeatureUser SentimentErgonomicPerformanceConnectivitySocial Proof
LG 27U631A-B 27" 56.663.768.972.228.548.453.245.995.5
ASUS TUF Gaming VG27VQMY Compare 75.139.84391.795.890.387.566.799.5
Dell S2725QC S2725QC Compare 6482.388.272.295.871.744.287.595.5
SANSUI 27 inch Compare 92.615.868.972.289.690.385.17790.8
MSI MAG MAG 275UPD E14 Compare 80.339.888.286.1090.39066.776.2
Alienware AW-Series AW2724HF Compare 8454.851.172.275.690.39589.695.5

Price

Value & Pricing

From $83 9 offers across 3 retailers
Best Buy 5 offers From $83
B&H Photo 3 offers From $148
Amazon 1 offers From $190

Price History

New Refurbished
$50 $100 $150 $200 $250 May 2May 15May 26Jun 6Jun 15Jun 24 $170

Usage Scores

Overall (64.6)Gaming (56.4)Office (66.5)Creative (54.3)Portable (17.5)Professional (56)Entertainment (53.4)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

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