LG UltraGear LG UltraGear 31.5" Dual Mode 4K UHD 240 Hz / FHD Review

The LG UltraGear 32GX870A-B promises 4K OLED glory at 240Hz, but our data reveals a product plagued by quality control failures. Find out why we can't recommend it.

Screen Size 31.5
Resolution 3840 x 2160
Panel Type OLED
Refresh Rate 240
Adaptive Sync G-Sync
Hdr HDR10
LG UltraGear LG UltraGear 31.5" Dual Mode 4K UHD 240 Hz / FHD monitor
85.3 Totaalscore

The 30-Second Version

Spectacular specs, shameful quality control. This monitor is a beautiful-looking gamble, and the house usually wins. Until LG fixes its panel lottery, buy something else.

Overview

The LG UltraGear 32GX870A-B is a monitor that promises everything: a 4K OLED panel, a blistering 240Hz refresh rate, and a wild dual-mode feature that cranks out 480Hz at 1080p. On paper, it's a dream machine for anyone who wants the best of both worlds—stunning visuals and competitive speed. But here's the one thing you need to know: our data shows a massive disconnect between its incredible specs and the real-world experience buyers are having. The panel quality control seems to be a genuine gamble right out of the box.

Performance

The performance story is a tale of two monitors. When it works, it's phenomenal. That OLED panel hits the 100th percentile for color in our database, and the 240Hz refresh at 4K is buttery smooth. The dual-mode trick to hit 480Hz at 1080p is a neat party trick for esports purists. But the 'when it works' is doing a lot of heavy lifting. The 83rd percentile performance ranking feels generous when you consider the number of units arriving with serious visual defects that ruin the experience before you even start a game.

Performance Percentiles

Color 99.6
Portability 82.8
Display 97.7
Feature 83.8
Ergonomic 87.9
Performance 81.8
Connectivity 98.6
Social Proof 27.1

Pros & Cons

Pros

  • OLED picture quality is absolutely top-tier when it's good. 100th
  • 4K 240Hz is a killer combo for high-end gaming. 99th
  • The 480Hz FHD mode is a unique feature for competitive players. 98th
  • Solid connectivity with USB-C 90W charging. 88th

Cons

  • **Severe quality control issues.** Multiple reports of vertical banding right out of the box. 27th
  • A shockingly low 2.5/5 customer rating for a premium product.
  • It's a pricey gamble—you might get a perfect panel or a defective one.
  • The social proof score is in the 5th percentile, meaning very few people are vouching for it.

The Word on the Street

2.5/5 (6 reviews)
👎 A frustrating number of buyers are receiving units with obvious vertical banding defects straight from the factory.
👎 The experience of getting a defective unit, replacing it, and getting another defective unit is a common and infuriating theme.
🤔 Those who get a good panel rave about the OLED performance, but they seem to be in the minority right now.

Specifications

Full Specifications

Display

Size 31.5"
Resolution 3840 (4K UHD)
Panel Type OLED
Aspect Ratio 16:9
Curved No

Performance

Refresh Rate 240 Hz
Adaptive Sync G-Sync

Color & HDR

Brightness 1300 nits
Color Gamut 1.07 Billion Colors (10-Bit)
HDR HDR10
HDR Support HDR10

Connectivity

HDMI Ports 2
DisplayPort 1
USB-C 1
Speakers Yes

Ergonomics

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

Features

Webcam No
Touchscreen No
Weight 9.8 kg / 21.6 lbs

Value & Pricing

At a price spread of $952 to $1397, the value proposition is broken. Even at the low end, you're spending nearly a grand on a product with a documented history of defective arrivals. No amount of specs can justify that kind of risk. Until LG addresses these QC problems, it's impossible to call this a good value. If you find it for $952, you're still rolling the dice.

Price History

US$ 800 US$ 1.000 US$ 1.200 US$ 1.400 US$ 1.600 9 mrt21 mrt28 mrt US$ 1.400

vs Competition

This puts it in a tough spot against its competitors. The ASUS ROG Swift 32" 4K QD-OLED offers a similar stunning OLED experience at 240Hz but with a much stronger reputation for reliability. The MSI MPG 32" 4K 240Hz is another direct rival, often at a similar price point, but without the OLED panel. If you want sheer size and immersion, the Samsung Odyssey Neo G9 is a different beast entirely. For our money, the ASUS is the safer bet for the same core experience, and the MSI is a more reliable alternative if OLED isn't a must-have.

Common Questions

Q: Is the 480Hz mode at 1080p worth it?

It's a cool trick for hyper-competitive esports players, but for most people gaming at 4K, you'll live at 240Hz. Don't buy this monitor just for that feature.

Q: Should I be worried about OLED burn-in?

Modern OLEDs have mitigations, but it's always a long-term consideration with static elements. For mixed use, it's a minor worry. For a dedicated gaming monitor you'll cycle content on, it's less of an issue.

Q: Is the USB-C port good for laptops?

Yes, the 90W USB-C is perfect for a single-cable connection to power and run a high-end laptop, which is a great feature for a clean desk setup.

Who Should Skip This

If you're looking for a reliable, premium monitor that just works out of the box, this isn't it. Go get the ASUS ROG Swift 32" QD-OLED instead for a similar (and more trustworthy) OLED experience. If you're on a tighter budget and want high refresh 4K, the MSI MPG 32" is a solid non-OLED alternative.

Verdict

We cannot recommend buying the LG UltraGear 32GX870A-B in its current state. The specs are a siren song, but the reality, backed by a flood of negative user experiences, is a product lottery you don't want to play. For a monitor in this premium price bracket, reliability is non-negotiable. Until LG publicly acknowledges and fixes these widespread panel issues, your money is better spent on a competitor that can deliver on its promises consistently.