Front image of the UltraGear™ 27G850a gaming monitor.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Based on published specifications of every 27-inch monitor as of December 2024, LG 27G850A is the only model with 4K (3840x2160) resolution and 240Hz refresh rate.
27-inch 4K (3840x2160)
Nano IPS Black
DCI-P3 99% (Typ.)
DisplayHDR 600
1ms (GtG) response time
Dual-Mode
(4K 240Hz ↔ FHD 480Hz)
DisplayPort 2.1
NVIDIA® G-SYNC® Compatible
VESA Certified AdaptiveSync
AMD FreeSync™ Premium Pro
27-inch gaming monitor with 4K resolution and 240Hz refresh rate.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Based on published specifications of every 27-inch monitor as of December 2024, LG 27G850A is the only model with 4K (3840x2160) resolution and 240Hz refresh rate.
Nano IPS Black
The UHD 4K gaming monitor (3840x2160) with Nano IPS Black enhances the contrast ratio from the standard IPS 1000:1 to 2000:1, this display enhances dark game scenes with sharper detail in objects, shadows, and backgrounds. Experience brighter, more vibrant colours and a heightened sense of realism that boosts your immersion to the next level.
Nano IPS Black (2000:1)
IPS (1000:1)
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Nano IPS is an advanced IPS technology that uses nanometer-sized particles on the screen's LED.
Deep Black Pro
Conquer every gaming battlefield with unmatched precision, driven by the Nano IPS Black panel’s exceptional contrast and enhanced by Deep Black Pro technology. The block-based precise brightness control deepens dark areas and brightens highlights, delivering stunning detail and elevating every moment of gameplay.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
DisplayHDR 600 | DCI-P3 99%
Our gaming monitor supports a wide colour spectrum, 99% (Typ.) of the DCI-P3 colour gamut, expressing high-fidelity colour for reproducing with VESA DisplayHDR 600, enabling a realistic gaming experience.
Futuristic armored warriors battling with energy weapons in a neon-lit city.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
Reader Mode
Live colour Low Blue Light
Live colour Low Blue Light
LG’s Live colour Low Blue Light with TÜV Rheinland Low Blue Light Certification helps to protect your eyes against blue light by combining RGB hardware and software adjustments while maintaining vivid colour quality.
*TÜV Rheinland certification ID (Low Blue Light - Hardware Solution): 1111294031
*The images simulated to enhance feature understanding.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*Nano IPS is an advanced IPS technology that uses nanometer-sized particles on the screen's LED.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The performance of 'Dual-Mode’ may vary depending on the game type.
The latest DisplayPort 2.1, sets a new standard for next-generation gaming. It is an advanced interface expected to be introduced with the next generation of GPUs, enabling high-speed gaming at 240Hz in UHD resolution. Additionally, with multi-ports like HDMI 2.1 x2, it seamlessly connects to the latest consoles and PCs.
A futuristic motorcyclist emerging from a monitor screen with vibrant neon light trails and a DP 2.1 cable in the foreground.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*DP, HDMI, and USB cables are included in the package.
*The graphics card is NOT included in the package.
Image of a green car racing on a track.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The performance of the feature is compared to the models not applying the sync technology.
*Errors or delays may occur depending on the network connection.
Our monitor is an NVIDIA-tested and officially validated G-SYNC® Compatible monitor, that works with NVIDIA graphics cards to significantly reduce tearing or stuttering.
Featuring VESA AdaptiveSync Display certification, geared towards gaming with notably higher refresh rates and low latency. Enjoy smoother, tear-free gaming visuals and jitter-free video playback.
With FreeSync™ Premium Pro technology, gamers can experience seamless, fluid movement in high-resolution and fast-paced games. It significantly reduces screen tearing and stuttering.
*Headsets sold separately.
Gaming GUI
Gamers can use On-Screen Display and LG Switch to easily customise the settings from adjusting basic monitor options to registering the ‘User Defined Key’ that users can set as their shortcut.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*To download the LG Switch app, visit LG.COM.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*To download the latest version of the LG Switch app, visit LG.com.
Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.
Black stabiliser helps gamers to detect snipers lurking in the darkest corners and swiftly navigate flash explosions.
The target point is fixed in the center to enhance shooting accuracy.
The FPS Counter will let you see how well everything is loading. Whether you're editing, playing games, or watching a movie, every frame matters, and with the FPS Counter, you'll have real-time data.
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
*The Crosshair feature is unavailable while FPS Counter is activated.
*FPS Counter may display the value that exceeds the monitor’s maximum refresh rate.
*FPS (Frame Per Second) Counter: Measurement of frames per second.
Experience our hexagon lighting and a virtually borderless 3-sided clean design featuring a fully adjustable base with swivel, tilt, height, and pivot. A clutter-free L stand and wide-range swivel adjustment are designed to minimise desk space usage and eliminate dead space efficiently.
A monitor on a desk showing a gaming scene.
Rear view of a monitor with LED accents on a desk.
'-30~30°
'-8~15°
110mm
'Counter Clockwise
*Images have been simulated to enhance feature understanding, and may differ from actual use experience.
Step-by-step guide
Follow our simple step-by-step video guide to install your new LG monitor quickly and correctly. Start gaming today.
*Images based on a representative 3D model for illustrative purposes. Setup steps, components, or shapes may vary by model. Shared assembly sections can still be used as reference—please refer to your product manual for model-specific instructions.
Display - Size [Inch]
27
Display - Resolution
3840 x 2160
Display - Panel Type
IPS Black
Display - Aspect Ratio
16:9
Display - Color Gamut (Typ.)
DCI-P3 99% (CIE1976)
Display - Refresh Rate (Max.) [Hz]
240
Display - Response Time
1ms (GtG at Faster)
Mechanical - Display Position Adjustments
Tilt/Height/Swivel/Pivot
Product name
UltraGear
Year
Y25
Size [Inch]
27
Size [cm]
68.47
Resolution
3840 x 2160
Panel Type
IPS Black
Aspect Ratio
16:9
Pixel Pitch [mm]
0.1554x0.1554
Brightness (Min.) [cd/m²]
360cd/m²
Brightness (Typ.) [cd/m²]
450cd/m²
Color Gamut (Min.)
DCI-P3 90% (CIE1976)
Color Gamut (Typ.)
DCI-P3 99% (CIE1976)
Color Depth (Number of Colors)
1.07B
Colour Bit
10bit
Contrast Ratio (Min.)
1400:1
Contrast Ratio (Typ.)
2000:1
Response Time
1ms (GtG at Faster)
Refresh Rate (Max.) [Hz]
240
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)
HDR 10
YES
VESA DisplayHDR™
DisplayHDR™ 600
HDR Effect
YES
Nano IPS™ Technology
YES
Color Calibrated in Factory
YES
HW Calibration
HW Calibration Ready
Flicker Safe
YES
Reader Mode
YES
Color Weakness
YES
NVIDIA G-Sync™
G-SYNC Compatible
AMD FreeSync™
FreeSync Premium Pro
VRR
YES
Black Stabilizer
YES
Dynamic Action Sync
YES
Crosshair
YES
FPS Counter
YES
User Defined Key
YES
Auto Input Switch
YES
RGB LED Lighting
Unity Hexagon Lighting
Smart Energy Saving
YES
Others (Features)
VESA DSC Tech, 4way Joystick, Dual-Mode, Deep Black Pro
LG Calibration Studio (True Color Pro)
YES
Dual Controller
YES
HDMI
YES(2ea)
DisplayPort
YES(1ea)
DP Version
2.1
USB Upstream Port
YES(1ea/ver3.2 Gen1)
USB Downstream Port
YES(2ea/ver3.2 Gen1)
Headphone out
4-pole (Sound+Mic)
Type
External Power(Adapter)
AC Input
100~240V (50/60Hz)
DC Output
19V,5.79A
Power Consumption (Sleep Mode)
Less than 0.5W
Power Consumption (DC Off)
Less than 0.3W
Display Position Adjustments
Tilt/Height/Swivel/Pivot
Wall Mountable [mm]
100 x 100
Dimension with Stand (W x H x D) [mm]
614.7 x 581.8 x 249.1
Dimension without Stand (W x H x D) [mm]
614.7 x 365.4 x 68.1
Dimension in Shiping (W x H x D) [mm]
838 x 184 x 439
Weight with Stand [kg]
9.4
Weight without Stand [kg]
5.2
Weight in Shipping [kg]
12.3
Adapter
Depend on Country
Power Cord
Depend on Country
HDMI
YES (ver 2.1)
Display Port
YES (ver 2.1)
USB A to B
YES
Others (Accessory)
Mouse holder, Door
How to pick a gaming monitor?
Start with your priorities. Want crisp visuals? Go for 4K resolution. Need ultra-smooth motion? Prioritise a high refresh rate (144Hz or more) and low response time. If you're after deep contrast and colour accuracy, consider OLED or Nano IPS, Nano IPS black panels. Don’t forget adaptive sync tech like NVIDIA G-SYNC or AMD FreeSync™ Premium to eliminate screen tearing. LG’s UltraGear™ series offers a range of gaming monitors tailored to your play style—from casual console gaming to high-intensity PC competition.
What is the refresh rate of a gaming monitor?
Refresh rate, calculated in Hertz (Hz) refers to how many frames are shown within one second. For example, a 120Hz refresh rate indicates that the display refreshes with a new frame 120 times per second. Gaming monitors with high refresh rates offer smoother visuals with less screen tearing.
How many hertz is good for gaming?
For most gamers, 144Hz hits the sweet spot for fluid, responsive gameplay. Competitive players may want even faster refresh rates like 240Hz for that extra edge in fast-paced shooters or esports titles. LG’s lineup of UltraGear™ Gaming Monitors include models that go from 144Hz to 240Hz and beyond (when used in dual mode, LG's models support 165Hz and 330Hz OR 240Hz and 480Hz)*, all designed to keep up with the action while minimising lag and screen tearing.
*Actual refresh rates may vary depending on computer graphics specifications and configurations.
What are the differences between OLED, IPS, and VA panels?
OLED panels emit their own light at the pixel level, delivering near-perfect blacks, exceptional contrast, and vivid colours. They also offer ultra-fast response times, making them ideal for high-end gaming monitors, premium TVs, and professional video editing.
IPS panels are known for their accurate colour reproduction and wide viewing angles, maintaining clear images from various positions. This makes them well-suited for office work, design, and gaming. Their excellent colour accuracy is especially appealing to gamers who want to experience visuals exactly as the developers intended.
VA panels boast the highest contrast ratio among LCD types, providing an immersive experience for watching movies and videos. While not as fast as TN panels, they offer nearly comparable performance.
Should I get a curved monitor?
If you want a more immersive gaming experience, curved gaming monitors are a great choice. The curvature helps keep your eyes focused on the center of the screen naturally, which is great for long gaming sessions.
LG's UltraGear GX9 supports 800R curvature and 21:9 ultrawide aspect ratio, delivering immersive visuals and an ideal viewing distance. At a 800mm viewing distance, its 800R curvature creates a viewing angle of 90 degrees across both the center and the edge - pulling you deeper into the game.
Is 1440p or 4K better for gaming?
Both have their strengths. For many gamers, 1440p (QHD) hits a sweet spot between resolution and performance, especially for competitive gaming where frame rate matters most. It’s easier to push higher FPS without overloading your GPU. 4K, on the other hand, is all about detail and immersion—perfect for single-player adventures or next-gen console play. LG’s UltraGear™ gaming monitors offer both QHD and 4K options, so whether you prioritise speed or stunning visuals, there’s a perfect fit for your setup.
Can I connect my monitor to my PC with a USB-C?
Connecting your gaming monitor via USB-C is simple—just plug one end of the cable of your gaming monitor into your device’s USB-C port, and you’re good to go. You can charge your laptop too if your PC is connected to your monitor with a USB-C port.
*Supported model may vary.
What is DisplayPort 2.1?
DisplayPort 2.1, the latest version of the DisplayPort standard, delivering ultra-fast data speeds for flawless high refresh rate gameplay. It is developed by VESA (Video Electronics Standards Association) to provide high-performance display connectivity for computers and monitors.
Many of LG’s latest models support DisplayPort 2.1*, which doubles the bandwidth of DP 1.4. That means you get higher resolutions, smoother frame rates, and lower latency—perfect for fast-paced gaming.
*Note : We have received numerous reports from users of NVIDIA 50-series graphics cards experiencing screens turning off when using DisplayPort 2.1 with 10-bit or 12-bit settings. If you are experiencing the same, as a temporary workaround, you can switch the DisplayPort input to 1.4 in your monitor's OSD menu or adjust the colour setting to 8-bit in the NVIDIA Control Panel. This issue has been reported to NVIDIA, for a more permanent solution.
What is HDMI 2.1?
With HDMI 2.1 support, you’ll enjoy features like Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and support for 4K at up to 120Hz. Whether you’re gaming on a console or PC, these upgrades give you the flexibility and performance to match any setup.
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