LG LG 27BL55U-B 27" 4K UHD LCD Monitor - 16:9 - TAA Review
The LG 27BL55U-B packs a sharp 4K IPS display and a fantastic adjustable stand into a $250 package, making it a standout for productivity. Just don't expect it to be a gaming champion.
The 30-Second Version
The LG 27BL55U-B is a 27-inch 4K monitor that offers exceptional value for productivity and general use. It delivers sharp, color-accurate visuals and a fully adjustable stand, all for around $250. It's not a gaming monitor, but for office work, coding, and media, it's a fantastic budget-friendly choice.
Overview
If you're hunting for a 27-inch 4K monitor that won't break the bank, the LG 27BL55U-B is a solid contender. It's a straightforward IPS panel with a 3840 x 2160 resolution, which gives you a ton of screen real estate for work or a sharp picture for media. At around $250, it sits in that sweet spot for budget 4K productivity monitors. The big story here isn't about flashy gaming specs, but about getting a sharp, color-accurate display with excellent ergonomics for the price.
Performance
This is a 60Hz panel with a 5ms response time, so it's built for clarity and color, not speed. In our database, its performance score lands in the 37th percentile, which tells you it's not a gaming powerhouse. But that's not the point. Where it shines is in its display and color scores, hitting the 92nd and 88th percentiles, respectively. That 98% sRGB coverage and 4K resolution mean text is incredibly crisp and colors look accurate for everyday creative work or just enjoying 4K video. The 300-nit brightness and HDR10 support are decent for the price, but don't expect true HDR pop.
Pros & Cons
Pros
- Excellent 4K sharpness on a 27-inch IPS panel 93th
- Outstanding ergonomic stand with height, tilt, and pivot adjustment 90th
- Strong color accuracy with 98% sRGB coverage 85th
- Includes AMD FreeSync for basic frame smoothing 84th
- Very competitive price for a full-featured 4K monitor
Cons
- Standard 60Hz refresh rate, not suitable for high-refresh gaming 29th
- Limited connectivity with only DisplayPort and HDMI 33th
- HDR10 support is basic due to 300-nit peak brightness
- Hefty build at nearly 6kg isn't portable
- 5ms response time is slower than dedicated gaming displays
The Word on the Street
Specifications
Full Specifications
Display
| Size | 27" |
| Resolution | 3840 (4K UHD) |
| Panel Type | IPS |
| Aspect Ratio | 16:9 |
Performance
| Refresh Rate | 60 Hz |
| Response Time | 5 |
| Adaptive Sync | FreeSync |
Color & HDR
| Brightness | 300 nits |
| Color Gamut | sRGB 98% (CIE1931) |
| HDR | HDR10 |
| HDR Support | HDR10 |
Connectivity
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | Yes |
| Tilt | Yes |
| Swivel | No |
| Pivot | Yes |
| VESA Mount | 100x100 |
Features
| Weight | 6.0 kg / 13.2 lbs |
Value & Pricing
At $250, the value proposition is clear: you're getting a proper 4K IPS panel with a fantastic, fully adjustable stand. You usually have to pay a premium just for that stand on other models. While you sacrifice high refresh rates and fancy connectivity, the core display quality and ergonomics are where this monitor puts its budget. For office work, coding, photo editing in sRGB, or general media consumption, it's hard to find a better-equipped screen at this price.
vs Competition
This monitor lives in a different world than its listed 'competitors' like the massive Samsung Odyssey G9 or the ASUS ROG Swift OLED. Those are high-end gaming beasts costing many times more. A more direct rival would be something like the Dell S2721QS, another 27-inch 4K 60Hz IPS monitor. The LG often undercuts it on price and includes a more adjustable stand. If you need more speed, the MSI MPG 321URX offers 4K at 240Hz, but you'll pay over four times as much. The LG is for when your priority is pixel density and adjustability, not frame rates.
| Spec | LG LG 27BL55U-B 27" 4K UHD LCD Monitor - 16:9 - TAA | Samsung Odyssey Samsung - 57" Odyssey Neo G9 Dual 4K UHD Quantum | LG UltraGear LG UltraGear 45" WUHD DUAL MODE 4K 165Hz FHD 330Hz | ASUS ROG Swift ASUS Republic of Gamers Swift OLED PG27UCDM 26.5" | MSI MPG MSI 27 inch WQHD 2K 1440P 360Hz with AMD FreeSync | Dell UltraSharp Dell UltraSharp 27" 4K HDR 120 Hz Monitor (2-Pack) |
|---|---|---|---|---|---|---|
| Screen Size | 27 | 57 | 45 | 27 | 27 | 27 |
| Resolution | 3840 x 2160 | 7680 x 2160 | 5120 x 2160 | 3840 x 2160 | 2560 x 1440 | 3840 x 2160 |
| Panel Type | IPS | VA | OLED | OLED | OLED | IPS |
| Refresh Rate | 60 | 240 | 165 | 240 | 360 | 120 |
| Response Time Ms | 5 | 1 | - | - | 0 | 5 |
| Adaptive Sync | FreeSync | FreeSync Premium Pro | G-Sync Compatible | G-Sync Compatible | FreeSync Premium Pro | - |
| Hdr | HDR10 | HDR10+ | HDR10 | HDR400 | HDR400 | HDR |
| Compare | Compare | Compare | Compare | Compare |
Common Questions
Q: Is the LG 27BL55U-B good for photo editing?
Yes, its 98% sRGB color gamut coverage and 4K IPS panel provide accurate colors and fine detail, making it very capable for amateur or sRGB-based professional photo editing.
Q: Can you game on this LG 4K monitor?
You can play casual or slower-paced games, but the 60Hz refresh rate and 5ms response time mean it's not suitable for competitive esports or fast-action gaming where high frame rates are key.
Q: Does this monitor have a VESA mount?
Yes, it has a standard 100x100mm VESA mount pattern, so you can easily attach it to a monitor arm if you prefer that over the included adjustable stand.
Q: How does the LG 27BL55U-B compare to a Dell UltraSharp?
It offers similar core 4K IPS quality and ergonomics as an entry-level UltraSharp, but often at a lower price point, though it may lack some of Dell's premium connectivity or calibration guarantees.
Who Should Skip This
Skip this monitor if you're a competitive gamer—the 60Hz refresh rate will feel sluggish. Also, look elsewhere if you need thunderbolt connectivity for a MacBook, or if you're a video editor requiring wide color gamuts like DCI-P3. For those uses, consider a monitor with higher refresh rates or better connectivity, like a Gigabyte M28U for gaming or a Dell UltraSharp with USB-C for professionals.
Verdict
Should you buy the LG 27BL55U-B? If you want a sharp, color-accurate 4K screen for work, browsing, and casual use, and you value a good stand, then absolutely. It's a no-nonsense monitor that excels at the fundamentals. But if your main use is competitive gaming, or you need high brightness for professional HDR work, look elsewhere. For the price, it delivers where it counts: a great-looking picture on a highly adjustable base.