LG 27UD58-B Review - 27" 4K UHD IPS Monitor with FreeSync 

Experience fluid gaming with a monitor designed to bring the best out of every title. As one of the best cheapest options, its flaws are negligible compared to its gaming performance. We can put it side by side with Samsung UE590 and its LG counterpart LG 27UD68, and it is going to be pretty competitive.

Apart from a 4K resolution, this monitor also applies FreeSync technologies and an IPS panel instead of a TN panel which is usually cheap. It also offers features like screen split and a collection of ports placing itself ahead of the park.


  • Detailed 4K images
  • AMD FreeSync
  • Onscreen controls offer screen split
  • It has a gaming mode
  • Covers 99% sRGB


  • Limited ergonomic adjustments
  • Does not have inbuilt speakers
  • Lacks USB ports

Design Features

It’s the norm to see LG go out of its way with a creative design that is pleasing to the eyes. Although LG 27UD58-B has black bezels, it still looks great thanks to its crescent stand. The monitor has a metallic gray trim that gives a sparkly appearance when the monitor is turned off.

What is more impressive about this monitor is that the stand is removable and is mountable with VESA-type kits. What we don’t like, however, is the ergonomics of this monitor. It only offers height adjustments and tilts from -20 to 5 degrees. As you can see, there’s not much you can do when you want to edit photos or videos.

Since it does not support lots of ergonomics, it is not going to be a bother because the joints are not of the best quality. What’s more, it has its entire frame made of plastic. It means it won’t look as elegant when placed beside a metallic-frame monitor.

Controls and Connectivity

All the ports on this monitor are at the back. They face outward, and we don’t think it’s going to be a problem accessing them. LG 27UD58-B has two HDMI 2.0 ports, a DisplayPort 1.2 and an audio jack. The inclusion of two HDMI ports is music to the ears if you want to have two devices connected because it won’t need constant switching of the cables or buying an HDMI splitter.

This monitor includes On-Screen controls. It makes it easy to customize the settings with less hassle. LG 27UD58-B offers fast navigation using a joystick on the bottom bezel. You can also use your mouse to adjust color settings from the picture presets, brightness, and even the volume. With the help of the split screen option, you can now accomplish more by placing workloads side by side.

LG 27UD58-B also has settings for the game mode and dual controller. It is ideal in situations where you have two monitors that need centralized control as well as allowing you to choose from two FPS modes and the RTS pre-set mode to suit the game you are playing.

The black stabilizer comes in handy to optimize details in dark scenes. This way, titles like Assassin’s Creed Odyssey and Battlefield 4 will have realistic war fields.

Image Quality

LG has gone all out to ensure you get the best picture performance. With a 4K resolution screen and an In-Plane Switching (IPS) panel, it is without a doubt one of the best monitors on the market. The monitor has 178 degrees viewing angles alongside 1000:1 contrast ratio.  What you get is a comfortable viewing experience replete with rich 10-bit color depth covering 72% of sRGB.

The black uniformity could be better in dark rooms, but it’s not something you are going to have a problem with most of the time. For one, the monitor rarely suffers from excessive IPS glow and backlight bleeding. It is impressive in a brightly lit room since it can fight glow and also reach a peak brightness of 250 nits.

Out of the box, calibration is one of the most accurate we have seen so far in our research. You can choose to use it as it is or change a few settings here and there to improve the accuracy. We are talking about the gamma, DeltaE, luminance, and the color temperature. Improvements in these areas will see further color accuracy in different shades resulting in an impeccable display.

Gaming Performance

A 4K monitor is always desirable. And when paired with AMD FreeSync, the monitor is unstoppable. LG offers these features and more. After pairing this monitor with the appropriate graphics card for AMD FreeSync such as AMD Radeon RX VEGA 64. It will put you on top of remarkable performance from LG 27UD58-B.

This monitor has a 5ms response time and a 9ms input lag. You can expect fast game loading times ideal for most gaming situations. The only place it may not suit you so well is if you are a competitive gamer against someone with a better response time on their monitor.

Also, this monitor games at 60Hz refresh rate. It is not necessarily a bad thing since most games can comfortably run at 60Hz refresh rates. And because it combines FreeSync, it allows you to choose between basic and extended range. Extended range is recommended for gaming since it reduces tearing.

LG 27UD58-B also has the dynamic Action Sync Feature which is equivalent to BenQ’s Instant Mode. It allows the monitor to refresh in realtime which is super helpful for eSports gamers. It reduces lag and consequently reduces signal latency.

Flaws of the LG 27UD58-B Monitor

We would have liked to see some speakers on this model. But we understand this is a cheap model and nice speakers would be a luxury. We are also not pleased with the black uniformity. It is not a great performer in dark rooms because it also suffers from a bit of backlight bleeding.


LG 27UD58-B is a sleek monitor with advanced gaming features. It offers 4K UHD resolution for fine details and stunning clarity. Its FreeSync support gives you excellent motion handling along with low input lag which helps in fast response rates. It is also a good performer in other areas because you can edit photos & videos and also watch movies owing to its color depth and volume.

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