45 Inch UltraGear™ GX9s, OLED 240Hz Gaming Monitor with webOS for Streaming

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 Independence Day pricing available now on select appliances

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45GX90SB-B
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved screen displaying vibrant graphics - Front View
New
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
New
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved screen displaying vibrant graphics - Front View

45 Inch UltraGear™ GX9s, OLED 240Hz Gaming Monitor with webOS for Streaming

45GX90SB-B
45GX90SB-B
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved screen displaying vibrant graphics - Front View
New
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
New
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved display and adjustable stand - Front View
LG 45GX90SB-B UltraGear AI OLED Gaming Monitor with curved screen displaying vibrant graphics - Front View

Key features

  • 45” curved OLED, with 240Hz¹ speed, webOS streaming and cloud gaming in one display
  • Stream or cloud game with LG's webOS—no PC or console needed, all in one place²
  • alpha 8 AI Processor 4K Gen3 optimizes picture and sound in real time
  • Xbox Cloud, GeForce NOW, and Luna via the LG gaming Portal³ - no console needed
  • 45” 21:9 OLED delivers more screen space than 49” 32:9 for bigger gameplay
  • The 45" UltraGear™ OLED's steep and dramatic 800R curve surrounds you in the action
  • Reduced screen stutter with NVIDIA® G-SYNC® compatibility AMD FreeSync™ Premium Pro⁵
  • USB-C with 65W power. WQHD at 240Hz via DP 1.4 or HDMI 2.1⁶

1Requires graphics card that supports up to 240Hz refresh rate support.  Actual refresh rates may vary depending on computer graphics specifications and configurations.

2Based on published specifications of OLED gaming monitors as of March 2026.

3This feature is available on webOS only and is supported on models running webOS26 or later.  An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features.

4Some gaming services may require a subscription and gamepad. An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via USB-C or HDMI) are available. There is no fee to create an LG Account.

5LG OLED panels have been certified as Flicker-Free, Discomfort Glare Free, Low Blue Light Certificate Number: Flicker Free Display (OLED)- A196009, Discomfort Glare Free - V563481 (conditions of UGR less than 22), Low Blue Light Hardware Solution Platinum - V745051.

6NVIDIA® G-SYNC® Compatible supports variable refresh rate on GeForce GTX 10 Series and higher GPUs on Display Port, and GeForce RTX 30 Series and higher GPUs on HDMI 2.1.

7Requires graphics card that supports DisplayPort 2.1 to achieve up to 240Hz refresh rate support.  Actual refresh rates may vary depending on computer graphics specifications and configurations.

8Software installation required. Visit Support on LG.com to download.


Images may be simulated and dramatized for illustrative purposes. Actual features, functionality, and other product specifications may differ and are subject to change without notice. Prices, promotions, and availability may vary by model, store, and online. Prices subject to change without notice. Quantities are limited. Check with your local retailers for their final price and availability.

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