Wednesday at 935 PM. Link to comment Share on other sites. Lg Ultrafine 31 5 4k Display With Thunderbolt 3 Review A Large Monitor With Plenty Of I O Video Thunderbolt Display Macbook 4k Display Threads 251 Messages 64K. . 5K describes a display resolution of 5120 x 2880 and it is mostly found in Apples 27-inch iMac display. Outside of these the 5K resolution is not all that common. 4K first arrived as a cinema standard with 4096 by 2160 pixels hence the 4K name but in consumer electronics its morphed to mean 3840 by 2160 pixels - so theres no four thousand in the. Apples Studio Display is the companys second-ever external display meant for creative professionals and a more affordable option compared to the Pro Display XDR. LGs 27-inch Ultrafine 5K monitor also outputs at 5120 x 2880. 4K and UHD Resolutions. Front Display plus Rear Touch Screen - A new larger rear touch screen with touch zoom on HERO9 Black