When comparing LG 27MD5KA-B vs LG 27UD58-B, the Slant community recommends LG 27UD58-B for most people. In the question“What are the best monitors?” LG 27UD58-B is ranked 166th while LG 27MD5KA-B is ranked 196th. The most important reason people chose LG 27UD58-B is:
You'll not need to spend time calibrating this monitor because its out-of-the-box color accuracy and gamma tracking are high enough. The monitor's average color inaccuracy dE measures at only around 2.12 - too insignifficant to be spotted by a human eye.
Specs
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Pros
Pro Sharp pictures
On this monitor, the pictures appear incredibly sharp thanks to the enormously high pixel density of the LG 27MD5KA-B. The monitor's pixel density measures at 217.57 pixels per inch which corresponds even to the high standards of the Apple's Retina displays.
Pro Can power laptop
The LG 27MD5KA-B does have enough juice to power a laptop through its Thunderbolt3 compatible USB-C port. Through a single cable, the monitor can receive a video signal from a 2018's MacBook Pro, power it, and work as a USB hub.
Pro Doesn't need to be calibrated
You'll not need to spend time calibrating this monitor because its out-of-the-box color accuracy and gamma tracking are high enough. The monitor's average color inaccuracy dE measures at only around 2.12 - too insignifficant to be spotted by a human eye.
Pro High value for money
You'll be hard pressed trying to find a cheaper 27-inch 4K monitor that offers the functionality and the high picture quality of the 27UD58-B. In this price bracket, the most common 4K options are usually armed with the old-fashioned TN panels that don't look as good as an IPS panel of the LG 27UD58-B.
Cons
Con Lacks HDMI and DisplayPort
The only way to connect external hardware to this monitor is to use one of its USB-C ports.
Con Doesn't support HDR
The LG 27UD58-D doesn't have the HDR mode.
