UltraGear 27GX704A-B

The LG UltraGear 27GX704A-B delivers exceptional OLED gaming performance with 240Hz refresh rate, deep blacks, and strong HDR, but its glossy coating and modest SDR brightness make it best suited for dim environments.

Summed up from 8 published reviews

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What reviewers like

240Hz refresh rate with 0.03ms response time 2 3 5 6
Deep blacks and infinite contrast from WOLED panel 1 2 3 4
High HDR peak brightness (~1300 nits) and 98.5% DCI-P3 color 2 4 5 6
Fully adjustable stand with height, pivot, and VESA mount 5 6 7 8
HDMI 2.1, DisplayPort, and USB hub for multi-device connectivity 2 6 7

What they don't

Glossy screen reflects ambient light in bright rooms 2 4 5 6
Risk of permanent burn-in with static UI elements 1 2 3 6
Modest SDR brightness (~275 nits) limits daytime use 2 5 6 7
On-screen menu joystick can be unresponsive in standby 3 4

Best for

Gamers seeking OLED motion clarity and HDR contrast in dim rooms.

Skip it if

You need high SDR brightness or USB-C connectivity for bright offices.

Where it fits

use: Fast gamesGamingWorkPhoto and video
size: 27″
resolution: 1440p
panel: OLED
must-haves: HDMI 2.1

Specs

Size: 27″
Resolution: 1440p
Refresh rate: 240 Hz
Panel: OLED
Curved: No
USB-C: No
HDMI 2.1: Yes
Height-adjustable stand: No
Speakers: No

Also worth a look

Questions

Is the LG UltraGear 27GX704A-B worth it?

What do reviewers like about the LG UltraGear 27GX704A-B?

240Hz refresh rate with 0.03ms response time. Deep blacks and infinite contrast from WOLED panel. High HDR peak brightness (~1300 nits) and 98.5% DCI-P3 color. Fully adjustable stand with height, pivot, and VESA mount. HDMI 2.1, DisplayPort, and USB hub for multi-device connectivity.

What are the downsides of the LG UltraGear 27GX704A-B?

Glossy screen reflects ambient light in bright rooms. Risk of permanent burn-in with static UI elements. Modest SDR brightness (~275 nits) limits daytime use. On-screen menu joystick can be unresponsive in standby.

Who should buy the LG UltraGear 27GX704A-B?

Gamers seeking OLED motion clarity and HDR contrast in dim rooms. Skip it if you need high SDR brightness or USB-C connectivity for bright offices.

Sources

We don't test products ourselves. This page sums up 8 published reviews, read on October 23, 2026; each point above links to the reviews that make it.