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LG UltraGear OLED 27GX704A-B 27" specifications and in-depth review

LG UltraGear OLED 27GX704A-B 27"

Manufacturer: LG

The LG UltraGear OLED 27GX704A-B 27″ is a high-performance gaming monitor designed for exceptional visual quality. With its OLED/AMOLED display technology, this monitor delivers deep blacks and vibrant colors, enhancing the gaming experience. The 27-inch screen provides ample real estate for immersive gameplay and productivity.

Key technical features include a 240Hz refresh rate for smooth motion, 2560 x 1440 resolution, and a fast 0.03 ms response time. It also supports both AMD FreeSync Premium Pro and Nvidia G-Sync compatibility, ensuring smooth and tear-free visuals. The monitor offers a maximum contrast ratio of 1500000:1 and a wide viewing angle of 178º horizontally and vertically, making it suitable for various viewing setups.

Pros
  • The monitor supports AMD FreeSync Premium Pro and Nvidia G-Sync, providing smooth, tear-free gaming visuals.
  • With a 240Hz refresh rate and 0.03 ms response time, it delivers fast and responsive performance, ideal for competitive gaming.
  • The OLED/AMOLED display technology offers vibrant colors and deep contrast for a more immersive viewing experience.
  • It features VESA mount support, allowing for flexible mounting options to save desk space or adjust positioning.
  • The monitor has a maximum viewing angle of 178º horizontally and vertically, ensuring consistent image quality from various positions.
Cons
  • The monitor lacks stereo speakers, requiring external audio solutions.
  • It does not include a built-in smart TV or remote control, limiting its functionality for media consumption.
  • The absence of an anti-glare coating may affect visibility in brightly lit environments.
  • There is no USB Type-C or Thunderbolt support, limiting its connectivity options for modern devices.
  • It lacks features like ambient light sensor and front camera, which might be expected for some users seeking added convenience or multimedia features.
Who is this for?

The LG UltraGear OLED 27GX704A-B is well-suited for competitive gamers and content creators who demand high refresh rates and fast response times for smooth, lag-free gameplay. Its 240Hz refresh rate and 0.03 ms response time provide an edge in fast-paced games, while the OLED display ensures vibrant, detailed visuals. The VESA mount support and flexible positioning options make it ideal for users who need ergonomic setups or want to optimize desk space for a streamlined gaming or working environment.

Who is this NOT for?

This monitor is not ideal for users who require built-in audio or multimedia features, as it lacks stereo speakers and does not offer a remote control or smart TV functionality. It also may not be suitable for those working in bright environments, given its lack of anti-glare coating. Additionally, the absence of USB Type-C and modern connectivity options like Thunderbolt could be limiting for those needing fast, versatile connections with newer devices.

Display:

Display type OLED/AMOLED
response time 0.03 ms
screen size 27"
resolution 2560 x 1440 px
pixel density 108 ppi
Adaptive synchronization AMD FreeSync Premium Pro, Nvidia G-Sync Compatible
has anti-glare coating ✕
refresh rate 240Hz
maximum horizontal viewing angle 178º
maximum vertical viewing angle 178º
has a matte panel ✕
has a glossy panel ✕
has a touch screen ✕

The LG UltraGear OLED 27GX704A-B features a 27-inch OLED/AMOLED display with a 2560 x 1440 resolution, providing vibrant colors and deep contrast. With a 240Hz refresh rate and an ultra-fast 0.03 ms response time, it delivers smooth and responsive performance, ideal for gaming. The monitor offers wide viewing angles of 178º both horizontally and vertically, ensuring clear visuals from various positions. It supports AMD FreeSync Premium Pro and Nvidia G-Sync for tear-free gaming but does not include an anti-glare coating or touch screen functionality.

General info:

Type Gaming
release date September 2025
EU energy label F
supports total tilt ✓
Has a swivel stand ✓
Supports VESA mount ✓
height 351 mm
width 605 mm
thickness 45 mm
weight 7200 g
supports portrait mode ✓
volume 9555.975 cm³

The LG UltraGear OLED 27GX704A-B is a gaming monitor that offers versatile positioning options with its total tilt and swivel stand, making it easy to adjust for optimal viewing. It also supports VESA mounting, allowing for flexible wall or arm mounting solutions. The monitor has a height of 351 mm, a width of 605 mm, and a thickness of 45 mm, weighing 7200 g. Additionally, it supports portrait mode, providing more viewing flexibility, and has a volume of 9555.975 cm³. Its energy efficiency is rated at EU energy label F.

Colors:

brightness (typical) 275 nits
supports color calibration ✓
display colors 1070 million
contrast ratio 1500000:1

The LG UltraGear OLED 27GX704A-B features a typical brightness of 275 nits, ensuring clear visibility in various lighting conditions. It supports color calibration for accurate and consistent color reproduction, while its display can show up to 1070 million colors. The monitor also offers a high contrast ratio of 1500000:1, providing deep blacks and bright highlights for a more immersive viewing experience.

Connectivity:

HDMI ports 2
supports Thunderbolt ✕
DisplayPort outputs 1
DisplayPort version DisplayPort 1.4
has a DVI connector ✕
USB ports 0
Has USB Type-C ✕
HDMI version HDMI 2.1
supports Ethernet ✕
supports Wi-Fi ✕
has AirPlay ✕
mini DisplayPort outputs 0
has a VGA connector ✕

The LG UltraGear OLED 27GX704A-B is equipped with two HDMI 2.1 ports and a single DisplayPort 1.4 output for flexible connectivity. It does not support Thunderbolt, USB Type-C, or Ethernet, and lacks a DVI connector, VGA port, and mini DisplayPort outputs. Additionally, it does not offer Wi-Fi or AirPlay support, making it ideal for direct, high-quality connections to compatible devices.

Power:

operating power consumption 24W

The LG UltraGear OLED 27GX704A-B operates with a power consumption of 24W, ensuring efficient energy use while delivering high-performance visuals. This moderate power requirement makes it a solid choice for extended gaming or work sessions without significant energy draw.

Features:

has PiP ✕
has stereo speakers ✕
has built-in smart TV ✕
has a remote control ✕
supports Dolby Digital ✕
supports Dolby Digital Plus ✕
has DTS Surround ✕
has an ambient light sensor ✕
has a front camera ✕

The LG UltraGear OLED 27GX704A-B does not include features like PiP, stereo speakers, or built-in smart TV functionality. It also lacks a remote control, Dolby Digital or Dolby Digital Plus support, DTS Surround, and an ambient light sensor. Additionally, there is no front camera, making it a straightforward, no-frills monitor focused purely on display performance.

Final Verdict

The LG UltraGear OLED 27GX704A-B is a high-performance gaming monitor designed for users seeking smooth and responsive visuals, thanks to its 240Hz refresh rate and 0.03 ms response time. Its OLED display offers vibrant colors and deep contrast, making it ideal for gamers and content creators who prioritize image quality. However, it lacks built-in audio, smart TV features, and modern connectivity options like USB Type-C, which may limit its appeal for those requiring multimedia versatility. Overall, it is a solid choice for those focused on gaming and display performance, with flexibility in positioning and mounting.