LG 45GX900A-B (45-Inch WQHD OLED): The Consensus

The ORA Consensus Score
The LG 45GX900A-B is a large, curved WQHD OLED gaming monitor praised for its immersive visuals and exceptional gaming performance, though some users note its pixel density is a drawback for productivity and express concerns about reliability and support.
How it stacks up
All Gaming Monitors rankings →Ranked #8 of 10 scored. Category leader: ASUS ROG Strix 27" 4K QD-OLED Gaming Monitor (XG27UCDMG) at 9.4/10 — read that consensus →
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Available configurations
Owner reviews for this product pool across its configurations, so this report covers the family. Prices shown as captured; — means we haven't verified that configuration's price yet.
| Size | Style | Price | |
|---|---|---|---|
| 34 inches | 34GS95QE-W | — | Check price → |
| 39 inches | 39GS95QE-B | — | Check price → |
| 34 inches | 34GX900A-B | — | Check price → |
| 45 inches featured | 45GX900A-B | $1,099.99 | Check price → |
| 27 inches | 27GX700A-B | — | Check price → |
Score Breakdown
Overall Impression
The LG 45GX900A-B emerges from owner reviews as a monitor that delivers an undeniably immersive and high-performance gaming experience. Many users describe it as a significant upgrade, offering "next level" gaming. Its large, curved OLED panel is a standout feature, frequently cited for its stunning visuals and ability to transform gaming setups. While the consensus points to a generally positive reception, several specific areas, particularly regarding pixel density for non-gaming tasks and long-term reliability, warrant careful consideration.Gaming Performance & Picture Quality
For gaming, this monitor receives exceptional praise. Owners consistently highlight its "buttery smooth" 240Hz refresh rate and rapid 0.03ms response time, noting a complete absence of tearing and stuttering. The NVIDIA G-Sync compatibility further enhances this fluid experience. Users upgrading from other monitors, including other ultrawides and Alienware models, reported a dramatic improvement in graphics and overall immersion, especially for titles like BF6 and sim racing. The OLED technology is lauded for its vibrant colors, deep blacks, and impressive contrast, making games "feel next level gorgeous" and providing "crystal clear" picture quality. The 45-inch curved screen "envelopes" users, creating an expansive viewing area that many find superior to multi-monitor setups. However, the picture quality is not without its nuances, particularly outside of gaming. While the OLED panel's strengths are evident, several owners expressed concerns about the monitor's pixel density at its native 3440 x 1440 resolution spread across 45 inches. This can lead to visible pixels, an "almost screen door effect," and slight blurriness or pixelation when viewing text or working closely with documents. Some users found this "unacceptable" for the price point, particularly for productivity or office tasks, suggesting that for such uses, the higher-resolution 5K model might be a better investment. The brightness, while described as "amazing" and "neutral and smooth" by some, was noted by others as not quite "retina burning bright" compared to higher-end OLED panels, though still noticeably better than high-end LED monitors in contrast.Build, Ergonomics & Aesthetics
The physical presence of the LG 45GX900A-B is a dominant theme in owner feedback. It is frequently described as "humongous," "massive," and "very big," with its aggressive curve designed to immerse the user. Many appreciate this design choice, finding it "gorgeous" and "impressive" in their office or gaming setups, and a superior alternative to dual-monitor configurations. The sturdy base is noted for providing excellent stability. Connectivity is solid, with multiple ports including HDMI 2.1, DisplayPort, and a USB Type-C port that provides 65W power delivery, allowing for convenient charging and display for compatible devices. Setup is exceptionally easy, with many reporting quick and fuss-free installation. One user noted an initial display issue where only two-thirds of the screen was visible, but this was resolved by adjusting the refresh rate in Windows settings, suggesting a minor setup sensitivity rather than a product defect. Despite the praise, the monitor's sheer size and curve present some ergonomic challenges. Its large footprint necessitates a spacious desk, and some users reported experiencing motion sickness due to the immersive curvature. One owner also noted an "echo of your voice" when sitting in front of it, an unusual acoustic effect of its shape. While the height adjustment is generally smooth, one reviewer found it a "little difficult to get it to stay exactly where you want it."Reliability & Value
Reliability and customer support emerged as a weak point for this monitor. Several owners reported significant hardware issues, including vertical lines appearing on the screen, dead or stuck pixels shortly after purchase, and monitors completely failing within a few months. Experiences with LG's warranty and support were particularly concerning, with reports of prolonged repair processes (up to a month or more), monitors being returned unrepaired, and supervisors allegedly refusing to provide names or expedited replacements. One user even warned about a potential scam involving a product registration card packaged with the monitor. These accounts suggest a need for caution regarding potential defects and the manufacturer's post-purchase service. Despite these reliability concerns, many owners felt the monitor offered solid value for money, especially those who purchased it during sales events, with prices around $700-$800 being frequently cited as "a steal" or "worth every dollar." For these buyers, the immersive gaming experience and OLED picture quality justified the investment. However, as noted previously, some felt that at its full price, the low pixel density made it less appealing, advocating for the higher-resolution 5K model as a better value proposition for a broader range of uses.The Good
- Exceptional gaming performance with smooth refresh rates and quick response times.
- Highly immersive curved OLED display with vibrant colors and deep blacks.
- Generous screen size that enhances gaming and can replace multi-monitor setups.
- Easy and quick setup process.
The Bad
- Low pixel density for its size, leading to visible pixelation for some users, especially with text.
- Multiple reports of hardware defects and unsatisfactory customer support experiences.
- Very large footprint and aggressive curve may cause motion sickness or desk space issues for some.
What owners actually said
“I bought this 45" OLED 3440x1440 and for 2 weeks tried to love it, but the horrific PPI and max resolution led me to ultimately return it and upgrade to the 45" 5K model. Save your pennies, and just buy the 5k model. The low resolution at this size will disappoint greatly.”
“Dead or stuck pixel in the fourth quadrant / bottom right area of the monitor. This is an excellent monitor, but for the price point I can't tolerate a defect this early on.”
“Disappointed in the display and the sound is not working. Outside of the window of return - purchased about 45 days ago.”
Quoted verbatim from the verified owner reviews this report was synthesized from.
LG 45GX900A-B (45-Inch WQHD OLED) · 7.7/10
For dedicated gamers seeking an incredibly immersive and high-performance experience, this monitor is a compelling choice, especially when found on sale. However, those prioritizing crisp text for productivity or concerned about long-term reliability should consider alternatives or the higher-resolution model.
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Specifications
Manufacturer-published specs. Not part of the review analysis.
Display
| Aspect Ratio | 21:9 |
|---|---|
| Screen Finish | Matte |
| Contrast Ratio | 1500000:1 |
| Refresh Rate | 240 hertz |
| Display Type | OLED |
| Display Technology | WQHD |
| Viewing Angle | 178 degrees |
| Brightness | 275 candela_per_square_meter |
| Pixel Pitch | 0.3 |
| Color Gamut | 90 |
| Picture Quality Enhancement Technology | DisplayHDR True Black 400, HDR 10 |
Measurements
| Screen Size | 44.5 inches |
|---|---|
| Item Dimensions D x W x H | 13.3"D x 39.1"W x 26.1"H |
| Item Weight | 29.8 pounds |
Display Resolution
| Resolution | QHD Ultra Wide 1440p |
|---|---|
| Display Resolution Maximum | 3440 x 1440 pixels |
| Native Resolution | 3440x1440 |
Performance
| Response Time | 0.03 milliseconds |
|---|
Ports
| Total Number of HDMI Ports | 2 |
|---|---|
| Total Usb Ports | 3 |
| Total USB 3.0 Ports | 2 |
Additional details
| Additional Features | Built-In Speakers, Curved, Dynamic Action Sync, Height Adjustment, High Dynamic Range, Swivel Adjustment, Ultrawide Screen |
|---|---|
| Specific Uses For Product | Gaming, Multimedia, Personal |
| Color | Black |
| Mounting Type | Wall Mount |
| Shape | Curved |
Item details
| Brand | LG |
|---|---|
| Model Number | 45GX900A-B.AUS |
| Model Name | 45GX900A-B.AUS |
| UPC | 195174124062 |
| Manufacturer | LG Electronics Inc. |
| Unit Count | 1 Count |
| Built-In Media | DisplayPort Cable, HDMI 2.1 Cable, Monitor, USB-C Cable |
Connectivity
| Connectivity Technology | DisplayPort, HDMI, USB Type C |
|---|---|
| Hardware Connectivity | DisplayPort, HDMI, USB Type C |
Display Features
| Adaptive Sync | FreeSync Premium Pro, G-Sync Compatible |
|---|
Frequently Asked Questions
Is the LG 45GX900A-B good for gaming?
Yes, it receives exceptional praise for gaming, offering a "buttery smooth" 240Hz refresh rate, 0.03ms response time, and NVIDIA G-Sync compatibility. Its curved OLED display provides vibrant colors, deep blacks, and an immersive experience.
How does the LG 45GX900A-B perform for productivity or office work?
The monitor's 3440 x 1440 resolution spread across 45 inches results in low pixel density, which can lead to visible pixels and blurriness with text. Some users found this unacceptable for productivity tasks, suggesting the higher-resolution 5K model might be better for such uses.
What are the physical characteristics and setup requirements of this monitor?
The LG 45GX900A-B is described as "humongous" and "massive" with an aggressive curve, requiring a spacious desk. Setup is exceptionally easy, and its sturdy base provides excellent stability.
Are there any known reliability issues or concerns about customer support for the LG 45GX900A-B?
Yes, several owners reported significant hardware issues like vertical lines, dead pixels, or complete failure, often shortly after purchase. Experiences with LG's warranty and support were concerning, with reports of prolonged repair processes and unsatisfactory service.
Is the LG 45GX900A-B a good value for its price?
Many owners felt it offered solid value, especially when purchased on sale for around $700-$800, citing the immersive gaming and OLED picture quality. However, some felt its full price was less appealing due to the low pixel density for broader uses.