LG UltraGear 27GX704A OLED Gaming Monitor Review: Would Owners Buy It Again?
Disclosure: As an Amazon Associate I earn from qualifying purchases. If you buy through links on this page we may earn a commission at no extra cost to you. How this review was made: We did not test this monitor in person. Detailed lab reviews were not readable for us, so this verdict leans on LG's published specs, a German review aggregator and a hardware news page. Evidence is thin, and we say so below. Our method.
Strong gaming specs, but evidence is thin and room lighting matters
On paper the 27GX704A offers a glossy 27-inch 1440p WOLED panel at 240Hz with 0.03ms response, two HDMI 2.1 ports and G-SYNC Compatible and FreeSync support. A German aggregator rates it good and shows a high average from many Amazon.de buyers, praising smooth motion and vivid color. The noted drawback is SDR brightness of about 275 nits, which can be dim in bright rooms. We could not read detailed burn-in or long-term data, so it depends on your room and how you use it.
Check current price on Amazon → Prices and availability change often, so we don't list them here.Buy it again if you…
- play fast games at 1440p and high refresh rates
- use the monitor in a dim or moderately lit room
- want multiple HDMI 2.1 ports for consoles and PC
Skip it if you…
- work in a bright room with lots of glare
- leave static desktop content on screen for many hours daily
- need built-in speakers
The LG UltraGear 27GX704A is a 27-inch glossy OLED gaming monitor with 2560 x 1440 resolution and a 240Hz refresh rate. It supports G-SYNC Compatible and FreeSync Premium Pro and is certified DisplayHDR True Black 400.
We could not read detailed lab tests for this model, so we rely on specs and limited reviews and flag the gaps.
What owners say, at a glance
Bars show our editorial summary of how consistently owners praise or complain about each area across all sources — not a lab measurement.
The key specs
| Panel | 27-inch glossy WOLED, 2560 x 1440 |
|---|---|
| Refresh and response | 240Hz, 0.03ms GtG rated |
| Brightness | About 275 nits SDR typical, 1,300 nits HDR peak per datasheet |
| Ports | Two HDMI 2.1, one DisplayPort 1.4, USB hub, 3.5 mm jack |
| Variable refresh | G-SYNC Compatible, FreeSync Premium Pro |
| Stand | Height, tilt, swivel and pivot adjustment |
What reviewers and buyers like
What to watch
How it holds up over time
We found no readable long-term data on burn-in or panel wear for this model. As with any OLED, varied content and sensible screen-saver settings are commonly advised, but we cannot confirm real-world results here.
Tips
- Use it in a dim room or control reflections for the best picture.
- Check your GPU for the display input needed to reach 240Hz at 1440p.
- Vary static content and use auto-hide taskbars to be gentle on an OLED.
Pros and cons
What owners love
- 240Hz at 1440p with fast rated response
- Vivid color and strong contrast from OLED
- Two HDMI 2.1 ports plus DisplayPort
- G-SYNC Compatible and FreeSync support
- Fully adjustable stand
What owners complain about
- SDR brightness around 275 nits
- Glossy panel can reflect room light
- No built-in speakers
- Limited long-term OLED evidence we could read
Other options owners compare
Gamers often weigh OLED against cheaper high-refresh LCD options.
| Model | Style | Consider it if… | |
|---|---|---|---|
| LG UltraGear 27GX704A (this review) | 27-inch 1440p 240Hz OLED | You want OLED contrast and speed | See on Amazon |
| Samsung 27-inch Odyssey G5 (G51F) Read our review | 27-inch gaming LCD | You want a lower-cost high-refresh monitor | See on Amazon |
| Other 27-inch OLED gaming monitors | OLED | You want to compare brightness and warranty terms | — |
Want OLED speed for your games?
Check the current price, warranty details and availability on Amazon.
Frequently asked questions
What resolution and refresh rate does it have?
2560 x 1440 at up to 240Hz, according to LG and Guru3D.
Is it bright enough?
SDR brightness is about 275 nits, which testberichte.de flags as a possible drawback in very bright rooms.
Does it support G-SYNC?
LG lists NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro support.
Does it have speakers?
No, testberichte.de notes there are no integrated speakers.
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Sources we analyzed
- LG: UltraGear 27GX704A-B product page — panel, ports, VRR, HDR certification
- testberichte.de: LG UltraGear OLED 27GX704A-B — editorial praise and criticism, buyer rating summary
- Guru3D: UltraGear OLED 27GX704A specs — brightness, gamut, ports, features
Figures reflect each source as of October 22, 2026 and may change. We summarize owner feedback in our own words and do not reproduce retailer reviews.