LG UltraWide LG UltraWide 34U511A-B 34" 1080p HDR 100 Hz Review
The LG 34U511A-B offers an ultrawide experience on a budget, but you'll have to compromise on image sharpness. Is the wide screen worth the fuzzy pixels?
The 30-Second Version
This LG UltraWide is a solid, affordable entry into the 21:9 world. It's got great color and a decent 100Hz refresh rate, but the 1080p pixel density on a 34-inch screen is its biggest weakness. At around $210, it's a budget-friendly ultrawide, but you're making a clear trade-off on sharpness.
Overview
The LG 34U511A-B is a 34-inch ultrawide monitor that's all about the wide screen without the high price. It gives you that immersive 21:9 aspect ratio for multitasking or gaming, but it sticks with a 2560 x 1080 resolution to keep costs down.
That's the core trade-off here. You get the expansive real estate of an ultrawide, which our database shows is great for productivity, but you're not getting the sharpest image. It's built for getting the job done, not for pixel-peeping.
Performance
Performance is a mixed bag. The 100Hz refresh rate and G-Sync support are nice touches, landing it in the 55th percentile for performance overall. It's smooth enough for casual gaming and feels snappier than a standard 60Hz screen. The 400-nit brightness and color accuracy are actually its strong suits, scoring in the 95th percentile. But that 1080p resolution stretched over 34 inches means the pixel density is low. Text and fine details won't look as crisp as they would on a sharper panel.
Pros & Cons
Pros
- Excellent color accuracy and brightness for the price. 94th
- The 100Hz refresh rate makes everything feel smoother. 84th
- G-Sync support helps with gaming. 76th
- The ultrawide screen is fantastic for productivity. 72th
Cons
- The 1080p resolution looks noticeably pixelated on a 34-inch screen. 8th
- Connectivity is basic, with only HDMI 1.4 and DisplayPort 1.4.
- The stand only offers tilt adjustment.
- It's a big, heavy monitor that's not going anywhere.
The Word on the Street
Specifications
Full Specifications
Display
| Size | 34" |
| Resolution | 2560 (QHD) |
| Panel Type | IPS |
| Aspect Ratio | 21:9 |
| Curved | No |
Performance
| Refresh Rate | 100 Hz |
| Response Time | 5 |
| Adaptive Sync | G-Sync |
Color & HDR
| Brightness | 400 nits |
| Color Gamut | 16.7 Million Colors |
| HDR | HDR10 |
| HDR Support | HDR10 |
Connectivity
| HDMI Ports | 1 |
| Speakers | No |
Ergonomics
| Height Adjustable | No |
| Tilt | Yes |
| Swivel | No |
| Pivot | No |
| VESA Mount | 100x100 |
Features
| Touchscreen | No |
| Weight | 6.9 kg / 15.2 lbs |
Value & Pricing
At around $210, the value proposition is clear: you're paying for the ultrawide form factor, not top-tier specs. For that price, you're getting a lot of screen with good color and a decent refresh rate. If your main goal is screen space on a tight budget, it's a fair deal. But if image sharpness is a priority, this isn't it.
vs Competition
Stacked up against the competition, this LG carves out a specific niche. The Samsung Odyssey G9 or ASUS ROG Swift OLED are in a completely different league (and price bracket) for gaming and HDR. More directly, compared to something like a Dell UltraSharp 27" 4K, you're trading all that pixel density for horizontal screen space. If you need to have three windows open side-by-side constantly, this LG wins. If you need to see every detail in a photo or document, the 4K Dell is the obvious choice. It's also worth noting many newer ultrawides at this size have moved to 1440p resolution, which is a much better fit.
| Spec | LG UltraWide LG UltraWide 34U511A-B 34" 1080p HDR 100 Hz | Samsung Odyssey Samsung - 57" Odyssey Neo G9 Dual 4K UHD Quantum | LG UltraGear LG UltraGear 45" WUHD DUAL MODE 4K 165Hz FHD 330Hz | MSI MPG MSI 27 inch WQHD 2K 1440P 360Hz with AMD FreeSync | ASUS ROG Swift ASUS ROG Swift 27" UHD 4K 240Hz with FreeSync | Dell UltraSharp Dell UltraSharp 27" 4K HDR 120 Hz Monitor & |
|---|---|---|---|---|---|---|
| Screen Size | 34 | 57 | 45 | 27 | 27 | 27 |
| Resolution | 2560 x 1080 | 7680 x 2160 | 5120 x 2160 | 2560 x 1440 | 3840 x 2160 | 3840 x 2160 |
| Panel Type | IPS | VA | OLED | OLED | OLED | IPS |
| Refresh Rate | 100 | 240 | 165 | 360 | 240 | 120 |
| Response Time Ms | 5 | 1 | - | 0 | - | 5 |
| Adaptive Sync | G-Sync | FreeSync Premium Pro | G-Sync Compatible | FreeSync Premium Pro | G-Sync Compatible | - |
| Hdr | HDR10 | HDR10+ | HDR10 | HDR400 | HDR400 | HDR |
Common Questions
Q: Is the pixel density really that bad on a 34-inch 1080p screen?
Yes, it's the main compromise. At about 82 pixels per inch, text and icons won't look as sharp as on a standard 24-inch 1080p monitor or any 1440p screen.
Q: Can you adjust the height of the monitor?
No, the included stand only allows for tilt adjustment. You'll need a VESA 100x100 mount if you want to change the height or swivel.
Q: Is this good for photo or video editing?
The color accuracy is surprisingly good, but the low resolution means you won't see fine details clearly. For serious creative work, a 4K or 1440p ultrawide is a better investment.
Who Should Skip This
Skip this immediately if you're a pixel snob, a competitive gamer who needs every edge, or a creative pro editing high-res photos and video. The lack of sharpness will drive you nuts. Also, if your desk is small, this 34-inch beast might just swallow it whole.
Verdict
Buy this if you're a productivity worker, casual gamer, or budget-conscious buyer who desperately wants an ultrawide screen and can live with softer text. The wide format is genuinely useful for spreadsheets, coding, or having multiple apps open. Just go in knowing the image won't be razor-sharp.