LG UltraGear GX9s 45GX90SA-B 45" WOLED 3440x1440 240Hz 0.03ms G-Sync Compatible USB-C HDMI 2.1 800R Curved Ultrawide Smart Gaming Monitor
Product Technical Specification
| Resolution 3440 x 1440 Panel Type OLED Aspect Ratio 21 | 9 Color Gamut (Typ.) DCI-P3 98.5% (CIE1976) Curvature 800R Refresh Rate (Max.) [Hz] 240 Response Time Less than 1ms GtG Display Position Adjustments Tilt/Height/Swivel |
| 21 | 9 |
| 1200000 | 1 |
| 1500000 | 1 |
| DTS HP | X |
Delivery Options
Economy Delivery (UK)
Business Express
LG 45" LG UltraGear™ OLED Gaming Monitor, 240Hz Refresh Rate, WQHD Resolution, webOS, 0.03ms (GtG) Response Time, Black
Key Features
45-inch WQHD (3440x1440) OLED display
240Hz refresh rate/ 0.03ms (GtG) response time
webOS
AI Picture / Dynamic Tone Mapping / AI Personalized Picture Wizard / AI Sound
NVIDIA® G-SYNC® Compatible / AMD FreeSync™ Premium / VESA Certified AdaptiveSync
Hexagon lighting design with space-saving L stand
STREAMING
webOS
AI Picture
Dynamic Tone Mapping
AI Personalised Picture Wizard
AI Sound
WINNING
45-inch WQHD Curved OLED
DisplayHDR True Black 400 & DCI-P3 98.5%
0.03ms (GtG) & 240Hz
AMD FreeSync™ Premium
VESA Certified AdaptiveSync
NVIDIA® G-SYNC® Compatible
CONNECTING
USB-C (PD 65W) & HDMI 2.1
LG Switch app
Sleek design with clutter-free L stand
The webOS-powered smart gaming monitor
Introducing the 45-inch webOS-powered smart gaming monitor with LG AI, relaxing during game breaks with effortless streaming, including free LG Channels and numerous streaming options. Plus, access high-performance cloud gaming without a separate PC or console, all easily controlled with the remote for added convenience.
The Gaming Portal is now open
The Gaming Portal is a gaming-friendly platform that offers a tailored experience, with options to select menus for gamepads or remote controls and support for personalised gamification. You can track rankings and points among players, while easily accessing a wide range of titles, from AAA to social games. With partnerships with leading cloud gaming services like GeForce NOW, Amazon Luna, and soon Xbox Cloud, along with native webOS app games, it allows gaming without the need for external consoles or devices, delivering the ultimate gaming experience.
Sharper characters, enhanced realism
With AI Picture, it delivers lifelike game visuals that highlight faces and bodies, reduce noise, and add depth. Every detail, from subtle expressions to enemy movements, is easy to catch, ensuring a focused screen for total immersion in gaming or streaming.
Come alive with brightness and contrast
Enjoy visuals as they were meant to be seen, with Dynamic Tone Mapping adjusting brightness and contrast for optimal detail and realism. Movies and games come alive with rich immersion and consistent quality across all content.
Detect, distinguish, fine-tuned sound
Detects your space and delivers perfectly tuned audio through a simulated 9.1 channel setup, pinpointing sound locations for a tactical edge without the need for extra speakers or headsets. Also, it distinguishes the gamer's voice from ambient sound, adjusting voice levels and clarity to keep you focused on your game.
The ideal curvature is 800R
Immerse yourself in the 800R curved screen, designed to match your natural sight, placing you at the core of its curvature. With a consistent 90-degree viewing angle across the entire screen, it delivers vivid, distortion-free graphics as you explore the gaming universe.
Deeper black, realistic colour
Experience unparalleled depth and vibrant realism with VESA DisplayHDR true black 400, delivering detailed black expression even in the darkest scenes. With a 1.5M contrast ratio, DCI-P3 98.5% (typical) colour gamut ensures that colours are displayed with realistic detail, just as originally intended.
Advanced eye comfort technologies by three UL verifications
Featuring an anti-glare finish, LG WOLED’s advanced eye comfort technologies minimise frustrating reflections and keep your eyes comfortable, delivering crystal-clear gaming performance with consistent clarity. With UL verifications in key areas—limiting harmful blue light exposure and preventing distractions from flickering lights—these technologies promote visual comfort and contribute to a smoother gaming experience, whether you’re gaming in bright environments or LED-lit rooms.
Key Specs
Resolution
3440 x 1440
Panel Type
OLED
Aspect Ratio
21:9
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Curvature
800R
Refresh Rate (Max.) [Hz]
240
Response Time
Less than 1ms GtG
Display Position Adjustments
Tilt/Height/Swivel
All Specifications
Product name
45GX90SA-B
Year
2025
DISPLAY
Size [Inch]
44.5
Size [cm]
113
Resolution
3440 x 1440
Panel Type
OLED
Aspect Ratio
21:9
Pixel Pitch [mm]
0.303 x 0.303mm
Color Gamut (Min.)
DCI-P3 94% (CIE1976)
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Color Depth (Number of Colors)
1.07B
Contrast Ratio (Min.)
1200000:1
Contrast Ratio (Typ.)
1500000:1
Response Time
Less than 1ms GtG
Refresh Rate (Max.) [Hz]
240
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)
Curvature
800R
Brightness (Min.) [cd/m²]
250cd/m²
Brightness (Typ.) [cd/m²]
275cd/m²
Colour Bit
10bit
FEATURES
HDR 10
YES
Dolby Vision™
NO
VESA DisplayHDR™
DisplayHDR™400 TRUE BLACK
HDR Effect
YES
Mini-LED Technology
NO
Nano IPS™ Technology
NO
Advanced True Wide Pol.
NO
Color Calibrated in Factory
YES
HW Calibration
NO
Auto Brightness
YES
Flicker Safe
NO
Color Weakness
NO
Super Resolution+
NO
Motion Blur Reduction Tech.
NO
NVIDIA G-Sync™
G-SYNC Compatible
AMD FreeSync™
FreeSync Premium
VRR
YES
Black Stabilizer
YES
Dynamic Action Sync
YES
Crosshair
YES
FPS Counter
YES
OverClocking
NO
User Defined Key
YES
Auto Input Switch
NO
RGB LED Lighting
Hexagon Lighting
PBP
2PBP
PIP
YES
Smart Energy Saving
YES
Camera
NO
Mic
NO
Others (Features)
NO
SW APPLICATION
LG Calibration Studio (True Color Pro)
No
Dual Controller
No
OnScreen Control (LG Screen Manager)
No
LG UltraGear™ Studio
No
CONNECTIVITY
D-Sub
NO
DVI-D
NO
HDMI
YES(2ea)
DisplayPort
YES(1ea)
DP Version
1.4 (DSC)
Thunderbolt
NO
USB-C
YES(1ea)
USB-C (Max. Resolution at Hz)
3440x1440@240Hz
USB-C (Data Transsmission)
YES
USB-C (Power Delivery)
65W
Daisy Chain
NO
USB Upstream Port
YES(via USB-C)
USB Downstream Port
YES(2ea/ver2.0)
Built-in KVM
NO
LAN (RJ-45)
YES
SPDIF out (Optical Digital Audio Out)
NO
Audio In
NO
Mic In
NO
Headphone out
3-pole (Sound Only)
Line out
NO
SOUND
Speaker
7W x 2
DTS HP:X
NO
Maxx Audio
NO
Rich Bass
NO
Bluetooth Connectivity
YES
POWER
Type
External Power(Adapter)
AC Input
100~240V (50/60Hz)
Power Consumption (Sleep Mode)
Less than 0.5W
Power Consumption (DC Off)
Less than 0.5W
DC Output
13.5A
MECHANICAL
Display Position Adjustments
Tilt/Height/Swivel
DIMENSIONS/WEIGHTS
Dimension with Stand (W x H x D) [mm]
992.7 x 661.7 x 338.6mm(UP) / 992.7 x 541.7 x 338.6mm(Down)
Dimension without Stand (W x H x D) [mm]
992.7 x 457 x 218mm
Dimension in Shiping (W x H x D) [mm]
1143 x 301 x 550mm
Weight with Stand [kg]
13.5Kg
Weight without Stand [kg]
8.9Kg
Weight in Shipping [kg]
18.9Kg
ACCESSORY
D-Sub
NO
DVI-D
NO
HDMI
YES (ver 2.1)
Thunderbolt
NO
USB-C
YES
Display Port
YES
USB A to B
NO
Remote Controller
YES
Adapter
YES
Calibration Report (Paper)
YES
HDMI (Color/Length)
Black / 1.8m
Power Cord
YES
| Resolution 3440 x 1440 Panel Type OLED Aspect Ratio 21 | 9 Color Gamut (Typ.) DCI-P3 98.5% (CIE1976) Curvature 800R Refresh Rate (Max.) [Hz] 240 Response Time Less than 1ms GtG Display Position Adjustments Tilt/Height/Swivel |
| 21 | 9 |
| 1200000 | 1 |
| 1500000 | 1 |
| DTS HP | X |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.