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Overview

Make your gaming experience realistic with the LG 45-inch OLED gaming monitor. Featuring a 3440 x 1440 WQHD resolution and an 800R curve, it delivers an exceptionally immersive viewing experience. Additionally, AMD FreeSync Premium Pro and NVIDIA G-SYNC compatibility eliminate screen tearing, ensuring smooth visuals for responsive gameplay.

LG 45" QHD 240Hz 0.03ms GTG Curved OLED G-Sync FreeSync Gaming Monitor (45GX900A-B) - Black

Model: 45GX900A-B
Web Code: 19597483
Sold and shipped by Best Buy

Available for deliveryAvailable to ship

Backorders will be shipped by December 19

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Return Policy

30 days to return or exchange

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Manufacturer's Warranty

Check with the manufacturer for details or add Best Buy Protection for extra coverage.

For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • LG Monitor
  • External Power Adapter
  • HDMI Cable
  • Displayport Cable
  • USB-C Cable
  • 45-inch 800R curve OLED monitor with 21:9 aspect ratio and 3440 x 1440 WQHD resolution delivers an immersive and visually striking gaming experience
  • 0.03ms response time and a 240Hz refresh rate deliver ultra-smooth, lightning-fast gameplay
  • AMD FreeSync Premium Pro and NVIDIA G-SYNC compatibility ensure ultra-smooth, tear-free visuals
  • Up to 98.5% of DCI-P3 colour coverage and a 1.5M:1 contrast ratio deliver vivid colours, deep blacks, and stunning visual detail
  • HDR 10 enhances contrast and colour range, delivering vivid, lifelike visuals
  • DisplayHDR True Black 400 delivers deep blacks and brilliant highlights making every gaming scene vivid and immersive
  • 178-degree viewing angles ensure clear, consistent visuals from almost any position
  • Dynamic Action Sync minimizes input lag for fast, real-time response
  • Black Stabilizer enhances visibility in dark scenes, revealing hidden details to help gamers react quickly
  • FPS Counter displays your current frame rate, helping you monitor performance for smooth gameplay
  • Crosshair feature improves aiming precision
  • 2PBP (Picture-by-Picture) and PIP (Picture-in-Picture) allow you to view content from multiple sources simultaneously
  • Reader mode adjusts screen brightness for a comfortable, eye-friendly reading experience
  • UL-verified flicker-free display reduces eye strain for comfortable gaming sessions
  • Glare free screen minimizes harsh reflections and glare to reduce eye strain
  • Low blue light hardware solution platinum reduces harmful blue light exposure
  • Colour calibrated in factory and HW calibration ready ensure accurate, true-to-life colours out of the box
  • Colour weakness feature adjusts colours to benefit colourblind users
  • Smart energy saving reduces power consumption, helping to reduce electricity costs
  • Two HDMI, one DisplayPort, one USB-C with 65W power delivery, two USB-A v3.0, and four pole headphone out (sound+mic) provide versatile connectivity options
Product Condition
Brand New
ENERGY STAR certified
No

Display

Screen Size
44.5 in
Resolution
1440p WQHD
Native Resolution
3440 x 1440
Aspect Ratio
21:9
Display Type
OLED
Touchscreen
No
Viewing Angle
178º(R/L) / 178º(U/D)
Response Time (Grey-to-Grey)
0.03 ms
Refresh Rate
240 Hz
Brightness
275 cd/m²
Dynamic Contrast Ratio
1500000:1
Colour Gamut
DCI-P3 98.5% (CIE1976)
3D Video Support Built-in
No
Built-In TV Tuner
No

Panel

Panel Technology
OLED
Panel Type
OLED
Curved
Yes

Audio

Built-in Speakers
Yes
Speaker Output Power
14 W

Inputs/Outputs

Input/Output Types
2 x HDMI; 1x DisplayPort; 1 x USB-C with 65W power delivery; 2 x USB-A v3.0; Headphone out - 4 pole (Sound+Mic)
DVI-D Support
No
HDCP Support
Yes

Power

Typical Consumption
52.83 W
Stand-By Consumption
0.5 W
Auto Off
Yes
Energy Saving Mode
Yes

Stand/Mount Features

Tilt Adjustment
Yes
Swivel Adjustment
Yes
Height Adjustment
Yes
Rotate to Portrait
Yes
VESA Mountable
Yes
VESA Sizes Supported
100 x 100
Other Features
HDR 10; DisplayHDR True Black 400; Color Calibrated in Factory; HW Calibration Ready; Reader Mode; Color Weakness; NVIDIA G-Sync G-SYNC Compatible; AMD FreeSync FreeSync Premium Pro; VRR; VESA Adaptive Sync; VESA ClearMR 13000; Black Stabilizer; Dynamic Action Sync; Crosshair; FPS Counter; User Defined Key; Auto Input Switch; 2PBP; PIP; Smart Energy Saving; Live Color Low Blue Light

Physical Features

Colour
Black
Dimensions with Stand (cm)
99.2 (W) x 33.8 (H) x 99.2 (D) cm
Dimensions with Stand (in)
39.06 (W) x 13.31 (H) x 39.06 (D) in
Dimensions without Stand (cm)
99.2 (W) x 45.7 (H) x 21.8 (D) cm
Dimensions without Stand (in)
39.06 (W) x 17.99 (H) x 8.58 (D) in
Weight (With Stand)
13.5 kg
Weight (Without Stand)
8.9 kg

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Please contact the manufacturer directly for information about their availability guarantee.