LG 45GX90SA-B UltraGear 44.5" OLED UWQHD 240Hz FreeSync Gaming Monitor
Model # 45GX90SA-B
-
SKU: 45GX90SA-B
- Pick Up Available
- Australian Warranty
- Checkout Securely
LG 45GX90SA-B UltraGear 44.5" OLED UWQHD 240Hz FreeSync Gaming Monitor
Take gaming and entertainment across an expansive 44.5-inch OLED display with the LG UltraGear 45GX90SA-B. Its 3440 × 1440 21:9 panel wraps around your view with an immersive 800R curve, while a 240Hz refresh rate and ultra-fast 0.03ms GtG response time deliver the speed demanded by high-performance gaming. Built-in webOS adds smart streaming, cloud gaming and LG AI features without requiring a connected PC for supported services.
UltraWide OLED immersion on a larger scale
3440 × 1440 WQHD OLED
The expansive 21:9 WQHD display provides approximately 34% more horizontal viewing space than a conventional 16:9 QHD screen, creating a wider field of view for supported games, movies and desktop applications.
Immersive 800R curvature
The deep 800R curve is designed to wrap the large OLED panel around your natural viewing position for a more engaging gaming and entertainment experience.
OLED deep blacks
A typical 1,500,000:1 contrast ratio enables exceptionally deep blacks and bright highlights, helping dark gaming environments retain detail and visual depth.
Advanced anti-glare OLED panel
LG's anti-glare technology helps minimise distracting reflections, while the OLED panel is designed to maintain vivid colour and clarity across different lighting environments.
Built for fast, responsive gaming
240Hz refresh rate
A maximum refresh rate of 240Hz delivers smooth motion and rapid visual updates for competitive shooters, racing games and other high-speed content.
0.03ms GtG response
The OLED panel's 0.03ms GtG response time supports extremely fast pixel transitions to help maintain sharp motion during demanding gameplay.
Adaptive sync support
NVIDIA G-SYNC Compatible, AMD FreeSync Premium and VESA Certified AdaptiveSync support help reduce tearing and stuttering when paired with compatible graphics hardware.
Advanced gaming tools
Dynamic Action Sync, Black Stabiliser, Crosshair and FPS Counter provide useful tools for lower-latency interaction, dark-scene visibility, aiming and real-time frame-rate monitoring.
HDR contrast and wide colour
DisplayHDR True Black 400
VESA DisplayHDR True Black 400 certification takes advantage of OLED black levels to provide strong contrast and detailed shadow reproduction in compatible HDR content.
DCI-P3 98.5%
Typical DCI-P3 98.5% colour coverage delivers a broad colour range for vivid games, movies and visual content.
1.07 billion colours
Support for approximately 1.07 billion colours helps create smooth tonal transitions across gradients and highly detailed imagery.
Factory calibrated
The display is colour calibrated at the factory to provide consistent visual performance straight out of the box.
Dynamic Tone Mapping
Dynamic Tone Mapping adjusts brightness and contrast in compatible HDR video to reveal detail across bright highlights and darker areas.
webOS smart gaming and entertainment
webOS built in
Integrated webOS provides access to compatible streaming applications, LG Channels, a full web browser and supported cloud gaming services without requiring a connected PC for compatible content.
AI Picture
AI Picture can enhance supported webOS content by identifying subjects, reducing noise and adding visual depth for clearer gaming and streaming imagery.
AI Personalised Picture Wizard
The Personalised Picture Wizard builds a preferred picture profile based on images selected through the supported smart interface.
LG ThinQ and Wi-Fi
Built-in Wi-Fi and LG ThinQ support complement the webOS smart platform, while the included remote makes supported smart functions easy to control.
AI Sound
AI Sound processes supported smart content and delivers tuned audio through the monitor's integrated speaker system for gaming and entertainment.
Connectivity for gaming, laptops and entertainment
USB-C with 65W power delivery
USB-C supports display, data transmission and up to 65W power delivery, helping compatible laptops connect and charge through a single cable.
HDMI 2.1 connectivity
Two HDMI inputs provide flexible connections for compatible gaming systems and computers, with an HDMI 2.1 cable included in the package.
DisplayPort 1.4 with DSC
DisplayPort 1.4 with Display Stream Compression provides a high-bandwidth connection for compatible PC gaming hardware and high-refresh WQHD output.
RJ45 and USB hub
RJ45 Ethernet connectivity and two USB 2.0 downstream ports provide additional options for networking and compatible peripherals.
Built-in audio and flexible viewing
7W × 2 speakers
Integrated 7W × 2 speakers provide convenient sound for games, streaming services and everyday entertainment without requiring separate desktop speakers.
Bluetooth connectivity
Bluetooth audio support allows compatible wireless speakers, headphones and other supported audio devices to connect to the monitor.
Picture-in-Picture and 2PBP
PIP and two-way Picture-by-Picture provide flexible ways to display compatible content from multiple sources on the expansive UltraWide screen.
LG Switch app
LG Switch provides convenient access to supported display layouts and monitor functions from a compatible computer.
Space-saving UltraGear design
Clutter-minimising L-stand
The L-shaped stand is designed to reduce dead space on the desk while providing a stable base for the large curved display.
Height, tilt and swivel adjustment
The adjustable stand allows the display position to be changed for a more comfortable gaming, viewing or working position.
Hexagon lighting
Rear Hexagon Lighting complements the UltraGear gaming design and adds a distinctive visual accent to compatible desk setups.
100 × 100 mm VESA mounting
The monitor supports a 100 × 100 mm VESA mounting pattern for use with a compatible monitor arm or wall mounting solution.
Why Choose the LG UltraGear 45GX90SA-B?
The LG UltraGear 45GX90SA-B combines the immersive scale of a 44.5-inch 800R curved OLED with 240Hz gaming performance and a 0.03ms GtG response time.
webOS, LG AI features, built-in speakers, Bluetooth, 65W USB-C, Ethernet and multi-source viewing allow the same display to work as a high-performance gaming monitor, smart entertainment screen and flexible productivity centre.
LG UltraGear 45GX90SA-B FAQ
What resolution does the LG 45GX90SA-B support?
It has a native 3440 × 1440 WQHD resolution with a 21:9 UltraWide aspect ratio.
What is the refresh rate?
The monitor supports a maximum refresh rate of 240Hz with a 0.03ms GtG OLED response time.
How curved is the screen?
The OLED panel uses an immersive 800R curvature.
Does the monitor have webOS?
Yes. webOS is built in for supported streaming, LG Channels, web browsing and compatible cloud gaming services.
Can USB-C charge a laptop?
Yes. USB-C supports display, data transmission and up to 65W power delivery for compatible devices.
Does it support G-SYNC and FreeSync?
Yes. It is NVIDIA G-SYNC Compatible and supports AMD FreeSync Premium and VESA Certified AdaptiveSync.
(45GX90SA-B)
LG UltraGear 45GX90SA-B Specifications
44.5-inch 240Hz WQHD 800R Curved OLED Smart Gaming Monitor
Display
| Screen Size | 44.5-inch / 113 cm |
|---|---|
| Panel Type | OLED |
| Aspect Ratio | 21:9 |
| Resolution | 3440 × 1440 WQHD |
| Curvature | 800R |
| Pixel Pitch | 0.303 × 0.303 mm |
| Colour Depth | 1.07 billion colours |
| Viewing Angle | 178° horizontal / 178° vertical |
Brightness, Colour and HDR
| Brightness | 275 cd/m² typical / 250 cd/m² minimum |
|---|---|
| Contrast Ratio | 1,500,000:1 typical / 1,200,000:1 minimum |
| Colour Gamut | DCI-P3 98.5% typical / 94% minimum, CIE1976 |
| HDR10 | Yes |
| VESA DisplayHDR | DisplayHDR 400 True Black |
| HDR Effect | Yes |
| Factory Colour Calibration | Yes |
Gaming Performance
| Maximum Refresh Rate | 240Hz |
|---|---|
| Response Time | 0.03ms GtG |
| NVIDIA G-SYNC | G-SYNC Compatible |
| AMD FreeSync | FreeSync Premium |
| VESA AdaptiveSync | Certified AdaptiveSync |
| Variable Refresh Rate | Yes |
| Dynamic Action Sync | Yes |
| Black Stabiliser | Yes |
| Crosshair | Yes |
| FPS Counter | Yes |
Connectivity
| HDMI | 2 inputs |
|---|---|
| DisplayPort | 1 input |
| DisplayPort Version | 1.4 with DSC |
| USB-C | Yes |
| USB-C Data Transmission | Yes |
| USB-C Power Delivery | Up to 65W |
| USB Downstream | 2 × USB 2.0 |
| USB Upstream | Via USB-C |
| LAN | RJ45 Ethernet |
| Headphone Output | 3-pole, sound only |
| Built-in KVM | No |
| Daisy Chain | No |
Smart Features
| Smart Platform | webOS |
|---|---|
| Full Web Browser | Yes |
| LG ThinQ | Yes |
| Wi-Fi | Yes |
| AI Picture | Yes |
| Dynamic Tone Mapping | Yes |
| AI Personalised Picture Wizard | Yes |
| AI Sound | Yes |
| Remote Controller | Included |
Convenience Features
| Picture-in-Picture | Yes |
|---|---|
| Picture-by-Picture | 2PBP |
| Auto Brightness | Yes |
| Reader Mode | Yes |
| HDR Effect | Yes |
| RGB Lighting | Hexagon Lighting |
| Auto Input Switch | No |
Audio
| Built-in Speakers | 7W × 2 |
|---|---|
| Bluetooth Connectivity | Yes |
| DTS Headphone:X | No |
| MaxxAudio | No |
Stand and Mounting
| Stand Design | Space-saving L-stand |
|---|---|
| Position Adjustments | Tilt / Height / Swivel |
| VESA Wall Mount | 100 × 100 mm |
Dimensions and Weight
| With Stand, Up | 992.7 × 661.7 × 338.6 mm |
|---|---|
| With Stand, Down | 992.7 × 541.7 × 338.6 mm |
| Without Stand | 992.7 × 457 × 218 mm |
| Shipping Dimensions | 1143 × 301 × 550 mm |
| Weight With Stand | 13.5 kg |
| Weight Without Stand | 8.9 kg |
| Shipping Weight | 18.9 kg |
Power and Accessories
| Power Type | External power adapter |
|---|---|
| AC Input | 100–240V, 50/60Hz |
| Sleep Mode | Less than 0.5W |
| DC Off | Less than 0.5W |
| DisplayPort Cable | Included |
| HDMI Cable | Included, version 2.1 |
| USB-C Cable | Included |
| Remote Controller | Included |
Product Information
| Model | 45GX90SA-B |
|---|---|
| Product Year | 2025 |
| Security Updates | Scheduled until 31 January 2029 |
| SKU | 45GX90SA-B |
| Barcode # | 8806096430262 |
| Brand | LG |
| Shipping Weight | 18.5900kg |
| Shipping Width | 0.029m |
| Shipping Height | 0.113m |
| Shipping Length | 0.055m |
Manufacturer Warranty : 3 years Manufacturer Warranty
Be The First To Review This Product!
Help other Device Deal users shop smarter by writing reviews for products you have purchased.
Others Also Bought
More From This Category
MSI Optix MEG381CQR Plus 37.5" 175Hz UWQHD+ 1ms G-Sync IPS Curved Gaming Monitor
$2,534.10 $3,148.48
