LG - UltraGear evo GX9 39" 5K2K OLED 165Hz 0.03ms G-SYNC FreeSync Premium Pro Gaming Monitor with DisplayHDR TRUE 500 - Black
Customers are saying
Customers are enthusiastic about the stunning OLED display quality and the impressive overall performance of this product. Users frequently highlight the significant improvements in peak brightness and the exceptional sharpness of the text. Additionally, the inclusion of a versatile range of connectivity ports is well-received by those who have integrated the device into their setups.
Highlights
Features
The OLED Gamers Have Been Waiting For
This 39-inch 5K2K curved OLED gaming monitor delivers the sweet spot of size, speed, and detail. The 21:9 ultrawide display with 143 PPI provides sharp visuals across a wide workspace, while Dual-Mode refresh rates up to 330Hz and 0.03ms response time keep gameplay smooth and responsive.¹
The World’s First 39" 5K2K OLED Gaming Monitor⁶
This 39-inch 5K2K (5120×2160) UltraGear hits the sweet spot of size, resolution, and speed. The wide 21:9 format and 1500R curve expand your field of view, while the dense pixel count delivers crisp detail across every scene in the games you love.
AI Upscaling to 5K2K—No GPU Upgrade Required
UltraGear evo’s built-in processor uses AI Upscaling to enhance content toward the display’s 5K2K resolution. It analyzes the source signal to improve detail and clarity—helping games and video look sharper without requiring a GPU upgrade.
Next-Gen Brilliance with 4th Gen RGB Tandem OLED
4th Gen Primary RGB Tandem OLED delivers up to 335 nits typical brightness with improved power efficiency. Its advanced 4-stack RGB structure enhances contrast, sharpens detail, and keeps color precise across every frame.
UL-verified for a "perfect" visual experience
Perfect Black: UL-verified Perfect Black delivers true black levels to enhance perceived brightness and contrast, whether it's bright or dark around you. UL-verified Perfect Reproduction ensures game content is faithfully rendered on screen, preserving intended color and detail. This certification reflects real-world content accuracy.¹
Deeper Detail with VESA DisplayHDR True Black 500
VESA DisplayHDR True Black 500 reveals rich blacks and nuanced shadow detail—even in dark scenes. Combined with a 1.5M:1 contrast ratio, up to 98.5% (typical) DCI-P3 color, and Delta E≤2 accuracy, visuals appear vivid, precise, and true to the creator’s intent.
High 143 PPI for Sharp, Detailed Visuals
With a sharp 143 PPI pixel density, in-game text, HUD elements, and fine visual details appear crisp and easy to read. The added clarity also improves everyday tasks like writing, web browsing, and working with text-heavy documents.
More Room to Create with 5K2K Ultrawide
The expansive 21:9 5K2K display with 143 PPI delivers sharp detail across a wide creative workspace. Edit video, retouch photos, and manage timelines on one seamless screen—while keeping documents, research, and multiple windows visible at the same time.
Dual Mode: 5K2K 165Hz for Detail or WFHD 330Hz for Speed
Switch between 5K2K resolution at 165Hz for cinematic AAA titles and Wide Full HD at 330Hz⁸ for ultra-responsive competitive gaming. VESA Certified Dual-Mode lets you optimize resolution and refresh rate to match the way you play.
Near-Instant 0.03ms (GtG) Response Time
With a near-instant 0.03ms (GtG) response time, pixels transition incredibly fast—helping reduce ghosting and keep fast-moving gameplay clear and responsive.
NVIDIA G-SYNC Compatible & AMD FreeSync Premium Pro
Minimize screen tearing and stuttering with NVIDIA G-SYNC compatibility⁷ and AMD FreeSync Premium Pro. These adaptive sync technologies help keep gameplay smooth and responsive by matching the monitor’s refresh rate to your GPU—so fast action stays clear with reduced blur and ghosting.
Future-Ready Connectivity for High-Performance Gaming
DisplayPort 2.1⁷ (UHBR20), USB Type-C with 90W power delivery, and HDMI 2.1 provide the connectivity modern gaming setups demand. DP 2.1 delivers the ultra-high bandwidth needed for high-resolution, high-refresh-rate gameplay, while USB-C supports display, data, and charging through a single cable. HDMI 2.1 ensures stable connections with consoles and other devices.
AI Sound Enhances Voices and Key Audio Cues
The AI Sound setting analyzes on-screen action and separates voices, sound effects, and background audio. AI Sound helps keep team comms clear while highlighting important gameplay cues—like approaching footsteps or nearby action—through speakers or connected headphones.
AI Scene Optimization Adapts to Your Content
The AI Scene Optimization setting detects what’s on screen and automatically adjusts picture settings like color temperature and sharpness. It helps optimize the display across preset modes such as Office, Animation, Movie, Game, and Sports.
OLED Care Helps Maintain Your Display
OLED Care helps maintain your OLED display’s long-term performance. Built-in maintenance features, including Pixel Cleaning, help keep the OLED panel operating at its best for consistent image quality over time.
Specifications
- Refresh Rate165HzMaximum Resolution5120 x 2160Response Time0.03 millisecondsSynchronization TechnologyG-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync Premium Pro (AMD Adaptive Sync)Screen Size39 inches
Reviews
Rating 4.7 out of 5 stars with 43 reviews
- OLED Quality (21)
- Brightness (11)
- Overall Performance (11)
- Connectivity (4)
- Text Clarity (4)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products

With UltraGear evo, experience the sweet spot of ultrawide OLED gaming with this 39-inch 5K2K (5120×2160) curved display. Designed in a wide 21:9 format with a 1500R curve, it expands your field of view while delivering crisp detail across a dense 143 PPI pixel canvas—more than 30% more pixels than a 32-inch 4K screen. 4th Gen Primary RGB Tandem OLED technology reaches up to 335 nits typical brightness and enhances contrast, color precision, and visual depth, supported by VESA DisplayHDR True Black 500 and UL-verified Perfect Black¹, Perfect Color, and Perfect Reproduction certifications. With Dual-Mode, switch between 5K2K at 165Hz for cinematic AAA gameplay or Wide Full HD at 330Hz² for ultra-responsive competitive play. A near-instant 0.03ms (GtG) response time with NVIDIA G-SYNC compatibility³ and AMD FreeSync Premium Pro keeps motion smooth and clear. UltraGear evo’s built-in processor powers AI Upscaling⁴ to enhance content toward the display’s 5K2K resolution—helping games and video look sharper without requiring a GPU upgrade. Modern connectivity—including DisplayPort 2.1⁵ (UHBR20), USB-C with 90W power delivery, and HDMI 2.1—supports high-bandwidth gaming setups and next-gen consoles, making this curved OLED gaming monitor the ideal intersection of size, speed, and visual precision.

The UltraGear 45” OLED Smart gaming monitor delivers the speed, scale, and smart performance serious players demand. The ultra-wide 21:9 display provides more usable screen space than a 49” 32:9 setup, giving you a broader view for deeper, more controlled gameplay. OLED technology powers vivid color, deep blacks, and a 1.5M:1 contrast ratio, enhanced by DisplayHDR True Black 400 and up to 98.5% DCI-P3 coverage. Stay competitive with a 240Hz refresh rate¹ and ultra-fast 0.03ms (GtG) response time for sharp, fluid motion with reduced blur. NVIDIA G-SYNC Compatible² and AMD FreeSync Premium Pro help keep gameplay smooth and tear-free. MLA+ technology boosts brightness up to 1300 nits peak for stronger highlights and better visibility. The 800R curve pulls you deeper into the action, while the virtually borderless design keeps your focus locked in. Built-in webOS lets you stream content or jump into cloud gaming—no PC or console required. USB-C with 65W power delivery simplifies your setup, while the adjustable stand keeps you comfortable through every session.

The LG UltraGear evo 45" 5K2K curved OLED gaming monitor delivers the size, speed, and picture quality serious gamers demand. The ultra-wide 21:9 , WUHD (5120×2160) screen with 125 PPI creates a sharp, expansive view, while AI Upscaling¹ enhances lower-resolution content for improved UHD clarity. Dual-Mode refresh rates up to 330Hz and a near-instant 0.03ms (GtG) response time keep gameplay fast, smooth, and responsive. The steep and dramatic 800R curve expands your field of view for a more commanding perspective, while the 45" 21:9 format delivers more usable screen space than a 49" 32:9 display. OLED with Micro Lens Array+ (MLA+) boosts brightness and reveals richer color. VESA DisplayHDR True Black 400, a 1.5M:1 contrast ratio, and up to 98.5% DCI-P3 bring deep blacks, vivid highlights, and impeccable detail to every scene. With Dual Mode, switch between 5K2K at 165Hz speed for cinematic gameplay and Wide Full HD at up to 330Hz² for competitive speed. NVIDIA G-SYNC compatibility³ and AMD FreeSync Premium Pro help reduce tearing and stutter. DisplayPort 2.1 (UHBR20), HDMI 2.1, and USB Type-C with 90W power delivery support modern setups. AI Picture and AI Sound optimize visuals and audio in real time, while OLED Care helps maintain long-term performance.

OLED immersion perfected in 5K. Witness the revolution of display technology with the Dell's first 39-inch 5K monitor with advanced RGB stripe tandem OLED technology, featuring incredible color purity, superb brightness, and the deepest blacks, even in well-lit rooms.
| Pros for LG - UltraGear evo GX9 39" 5K2K OLED 165Hz 0.03ms G-SYNC FreeSync Premium Pro Gaming Monitor with DisplayHDR TRUE 500 - Black | |||
|---|---|---|---|
| OLED Quality, Brightness, Overall Performance, Connectivity, Text Clarity | OLED Quality, Overall Performance, Brightness, Refresh Rate, Display Size | OLED Quality | There were no pros for this product— |




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