Not necessarily. For highly detailed work  -- think a CAD wireframe or illustration -- you might benefit from the higher pixel density of a 4K display, but for the most part, you can get away with something lower (and you'll be rewarded with slightly better battery life, too).  Color is more important, but your needs depend on what you're doing and at what level. A lot of manufacturers will cut corners with a 100% sRGB display, but it won't be able to reproduce a lot of saturated colors; it really is a least-common-denominator space, and you can always buy a cheap external monitor to preview or proof images the way they'll appear on cheaper displays.  For graphics that will only be appearing online, a screen with at least 95% P3 (aka DCI-P3) coverage is my general choice, and they're becoming quite common and less expensive than they used to be. If you're trying to match colors between print and screen, then 99% Adobe RGB makes more sense. Either one will display lovely saturated colors and the broad tonal range you might need for photo editing, but Adobe RGB skews more toward reproducing cyan and magenta, which are important for printing. A display that supports color profiles stored in hardware, like HP's Dreamcolor, Calman Ready, Dell PremierColor and so on, will allow for more consistent color when you use multiple calibrated monitors. They also tend to be better, as calibration requires a tighter color error tolerance than typical screens. Of course, they also tend to be more expensive. And you frequently need to step up to a mobile workstation for this type of capability; you can use hardware calibrators such as the Calibrite ColorChecker Display  (formerly the X-Rite i1Display Pro) to generate software profiles, but they're more difficult to work with when matching colors across multiple connected monitors.