I have this monitor and it's fantastic. It's small, 21.5-inch but the 4K resolution is wonderful and it doesn't make my old MacBook Pro goes crazy like the 5K 27 does. This also is the refurbished version, which is half of the price. It's a nice hack in my opinion and it works just fine. Its P3 99 percent color spectrum provides accurate image reproduction for precise photo-editing results, and it has a USB-C port for syncing and charging a MacBook and other compatible devices. This LG UltraFine LED monitor lets you display multiple frames for enhanced productivity with a macOS computer.

Specs

• This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day manufacturer warranty
• At 219 pixels per inch to deliver 4K resolution (4069 x 2304 at 21.5”), the LG UltraFine display lets you experience the definition and detail of a Mac on a large 4K screen.
• One USB-C port can replace multiple ports for transmitting data, 4K video and power charging. It is also able to simultaneously charge mobile devices while charging your MacBook (up to 60W). In addition, three USB-C downstream ports (USB 5 Gbps) let you connect additional devices.
• The LG UltraFine 4K display reaches a brightness of 500cd/m² and can express a wide range of color and contrast. You can experience vivid, lifelike images on a 4K screen, which provides a more natural representation.
• This 4K high-definition monitor with IPS minimizes color shift and delivers detailed, accurate images on the UltraFine 4K screen. Color is consistent from edge to edge
• Mounting Type: VESA mount bracket.³