Monitors in 4K or UHD resolution aren’t solely for gamers. Many potential 4K monitor buyers are video editors or people who choose to see several windows open side by side without the need for a second monitor. If that’s the case, you don’t need a panel with lightning-fast response times, but colour gamut, contrast ratios, and scale are all important considerations.
Three full-size browser windows will usually fit side by side on a 27-inch 4K display (these start at $350). If you make the display much bigger, it won’t be as good for multitasking.
Gamers, on the other hand, can opt for a larger-screen 4K monitor with quick reaction times and FreeSync or G-Sync compatibility if their PC uses a video card that supports one or the other, as tearing becomes much more annoying at higher resolutions. 4K gaming requires a powerful video card, however, 4K gaming monitors start at $350 and can cost well over $1,000 for 32-inch or larger versions with GPU adaptive sync support and IPS screens.