We test 4K monitors with a Datacolor Spyder X2 Ultra color calibration tool. It provides objective measurements for contrast, brightness, black levels, color gamut, color accuracy, and gamma ...

Reference monitors include a DCI compliant Christie CP4325 4K RGB laser projection system and a Sony BVM-X300 4K V2 OLED HDR mastering monitor. Calman color calibration support is also available.

ASUS has just dropped the ProArt PA27UCGE, a 4K monitor ... require top-tier color accuracy. The coolest part? The colorimeter is retractable, extending automatically when calibration is needed.