LG UltraGear 45GX90SA-B 45" 21:9 UltraWide QHD 240Hz Curved OLED HDR Gaming Monitor

SKU: LG45GX90SABA MFR: 45GX90SA-B.AUS
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Key Features

  • Immerse yourself with the 45" UltraWide curved OLED gaming monitor, boasting a stunning 3440 x 1440 resolution.
  • Experience silky-smooth gameplay with the lightning-fast 240Hz refresh rate, eliminating lag for competitive gaming.
  • The rapid 0.03ms response time (GtG) on this gaming monitor ensures every frame is crisp, reducing motion blur.
  • Enjoy vibrant, true-to-life colors with DCI-P3 98.5% color gamut, making every game world visually breathtaking.
  • NVIDIA G-Sync and AMD FreeSync compatibility eliminates screen tearing, providing a fluid, artifact-free experience.
  • Customize your setup with tilt, height, and swivel adjustments for optimal ergonomics and viewing comfort during long play.
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Temporarily On Backorder?Expected Availability: 09/2025
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$209.99

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Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

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TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

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Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

LG 45GX90SA-B Specifications

Picture Quality

Picture Quality

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  • Aspect Ratio

    21:9

  • Brightness (Typical, Minimum)

    (Typ.) 275 cd/sq. m (Min.) 250 cd/sq. m

  • Color Gamut (Typ.)

    DCI-P3 98.5% (CIE1976)

  • Contrast Ratio

    1500000:1 (Typ.)

  • Display Type

    OLED

  • Pixel Pitch

    0.303 x 0.303mm

  • Refresh Rate

    240Hz

  • Resolution

    3440 x 1440

  • Response Time (GTG)

    0.03ms (GtG)

  • Screen Size

    44.5" (113cm)

  • Viewing Angle

    178 Degree (R/L), 178 Degree (U/D)

Special Features

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  • RGB LED Lighting

    Hexagon Lighting

  • Curvature

    800R

  • VESA Adaptive Sync

    Yes

  • LG Switch

    Yes

  • AMD FreeSync Technology

    Yes

  • Auto Brightness

    Yes

  • Black Stabilizer

    Yes

  • Color Weakness Mode

    Yes

  • Crosshair

    Yes

  • Dynamic Action Sync

    Yes

  • Factory Calibration

    Yes

  • FPS Counter

    Yes

  • HDR Effect

    Yes

  • HDR10

    Yes

  • NVIDIA G-Sync

    Yes

  • PBP (Picture by Picture)

    Yes

  • PIP (Picture in Picture)

    Yes

  • Reader Mode

    Yes

  • Smart Energy Saving

    Yes

  • User Define Key

    Yes

Smart Features

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  • VESA DisplayHDR

    DisplayHDR TRUE BLACK 400

  • Voice Recognition

    Yes (Magic Remote sold separately)

  • Screen Share

    Yes

  • webOS 24

    Yes

  • Bluetooth

    Yes

  • USB Media Player

    Yes

  • Remote Desktop

    Yes

  • Home Hub

    Yes

  • AirPlay

    Yes

  • LG ThinQ App

    Yes

Input/Output

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  • Web Browser

    Yes

  • HDMI Version 2.1

    Yes

  • DisplayPort

    Yes

  • HDMI

    Yes

  • Headphone Out

    Yes

  • LAN

    Yes

  • USB Down-stream

    Yes

  • USB Type-C

    Yes

  • USB Up-stream

    Yes

  • USB-C (Data Transmission)

    Yes

  • USB-C (Power Delivery)

    65 W

  • Display Position Adjustments

    Tilt/Height/Swivel

  • Wall Mount Size

    100 x 100mm

  • Equalizer

    Yes

  • Speaker

    Yes

  • Input

    100-240V (50/60Hz)

  • Power Save/Sleep Mode (Max)

    Less than 0.5W

  • Type

    External Power (Adapter)

Physical

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  • Dimensions (W x H x D)

    With Stand: 39.1 x 26.1 x 13.3" (99.3 x 66.29 x 33.7cm) (UP)
    39.1 x 21.3 x 13.3" (99.3 x 54.1 x 33.7cm) (Down)

    Without Stand: 39.1 x 18 x 8.6" (99.3 x 45.7 x 21.8cm)

  • Weight

    With Stand: 29.8 lbs (13.5kg)
    Without Stand: 19.6 lbs (8.9kg)

  • UPC Code

    195174115114

About LG 45GX90SA-B

The 240Hz OLED Smart gaming monitor that's ahead of the (800R) curve
The huge 45" WQHD OLED with a steep 800R curve and up to 1300 nits (APL 1.5%) peak brightness pulls you deep into the action, while a 240Hz refresh rate and 0.03ms response time keep gameplay insanely fast and smooth. Plus, LG's webOS lets you stream your favorites and cloud game-all from one epic screen.

Up to 240Hz & 0.03ms - Outrageous OLED Gaming Speed
Game at the speed of OLED with an ultra-fast 240Hz and near instantaneous 0.03ms (GtG) response time. The faster speed lets you respond quickly to opponents and enjoy smoother scenes with less lag or ghosting.

Your Favorite Streaming Services Plus Cloud Gaming
Thanks to webOS24, find your favorites fast with built-in access to Netflix, Prime Video, the Apple TV app, Disney+, HBO Max. And over 300 free LG Channels with everything from comedy to movies to sports. Game without a PC or console! Connect to your favorite cloud gaming services such as NVIDIA GeForce NOW, Amazon Luna, and Blacknut directly from the webOS home screen.

Ultimate Frame Sync: FreeSync Premium & G-SYNC Compatible
Say goodbye to screen tearing and stutter. With AMD FreeSync Premium and NVIDIA G-SYNC compatibility, this OLED monitor delivers ultra-smooth, tear-free visuals, giving you perfect frame sync across PC and next-gen console gaming.

Bright Picture. Deep Blacks, Brilliant Detail: OLED Gaming FTW
Get lost in vivid visuals with OLED technology, delivering exceptional brightness, up to 98.5% of DCI-P3 color coverage, a 1.5M:1 contrast ratio, and DisplayHDR True Black 400. Every gaming scene pops with deep blacks, brilliant highlights, and cinematic color.

The 800R Curve: Surround Yourself in the Action
See and feel the action all around you with the dramatic 800R curve. This steep curvature extends your periphery, pulling you deeper into the game and making the action more intense.

Low Glare, More Focus: Play Without Distractions
UL-verified "Flicker-free Display", "Discomfort Glare Free" and "Low Blue Light Hardware Solution Platinum", this OLED display keeps your view crisp and colors bold. With advanced anti-glare tech minimizing reflections, you get distraction-free clarity-so you can stay focused and dominate in any lighting.

webOS Gaming: AI tools customize your gaming experience
Experience enhanced gaming in webOS with AI tools. Dynamic Tone Mapping and AI Picture sharpen visuals, while AI Personalized Picture Wizard customizes settings to your taste. AI Sound completes the package, delivering precision-tuned audio for every game or stream.

Unlock Your Potential with Advanced Gaming Features
• Dynamic Action Sync reduces input lag for real-time response
• Black Stabilizer brightens dark scenes to see what's hidden
• FPS Counter shows your real-time frame rate
• Crosshair enhances precision for deadly accuracy

Serious Connectivity for Serious Gamers
For next gen console gaming or PC gaming, with HDMI 2.1, DisplayPort 1.4 and USB Type-C (65W power delivery), UltraGear's versatile connectivity enables high-resolution graphics, and fast, fluid gaming.

Customize Your Screen View with the Switch App
The Switch app transforms your screen into a multitasking hub for work, gaming, and streaming. Effortlessly split the screen into up to 6 sections, customize display layouts, or launch video calls with a single hotkey. Navigate smart features with ease and switch seamlessly between your PC and the built-in webOS streaming platform, all with intuitive shortcuts.

Battlestation upgrade Adjustable to Gamer Specs
Go big with the virtually borderless 45" OLED screen. UltraGear's sleek, slim design offers adjustable height, tilt, and swivel control for your ideal view, while RGB hexagonal backlighting sets the mood for your battlestation.

LG 45GX90SA-B Features

  • 45" UltraGear OLED: A 21:9 curved WQHD display that's built for battle
  • Outrageous OLED gaming speed at up to 240Hz and 0.03ms response time
  • Easy access to popular streaming apps and cloud gaming services with webOS
  • Seamless frame sync with FreeSync Premium and G-SYNC for stutter-free gaming
  • Stunning and bright OLED visuals with rich color, deep blacks, and 1.5M:1 contrast
  • The 45" UltraGear OLED's steep and dramatic 800R curve surrounds you in the action
  • webOS brings tailored AI-driven visuals and audio for enhanced gaming experiences
  • Console or PC connectivity: HDMI 2.1, DisplayPort 1.4 and USB Type-C

Warranty Information

This product has a limited warranty of 24 months for parts and 12 months for labor.

Key Features

  • Immerse yourself with the 45" UltraWide curved OLED gaming monitor, boasting a stunning 3440 x 1440 resolution.
  • Experience silky-smooth gameplay with the lightning-fast 240Hz refresh rate, eliminating lag for competitive gaming.
  • The rapid 0.03ms response time (GtG) on this gaming monitor ensures every frame is crisp, reducing motion blur.
  • Enjoy vibrant, true-to-life colors with DCI-P3 98.5% color gamut, making every game world visually breathtaking.
  • NVIDIA G-Sync and AMD FreeSync compatibility eliminates screen tearing, providing a fluid, artifact-free experience.
  • Customize your setup with tilt, height, and swivel adjustments for optimal ergonomics and viewing comfort during long play.

What's in the box:

  • LG UltraGear 45GX90SA-B 45" 21:9 UltraWide QHD 240Hz Curved OLED HDR Gaming Monitor
  • Power Cable
  • USB Type-C Cable
  • Display Port Cable
  • HDMI Cable
  • LG 2 Year Limited Warranty