4K video refers to video content with a resolution of approximately 3840 × 2160 pixels, providing a significantly higher image quality compared to traditional high-definition formats.

When a 4K video is played on a TV or other device, the high number of pixels allows for a more detailed and sharper image, offering a more immersive viewing experience for the audience.

Although 4K video provides superior image quality, it requires higher bandwidth and storage capacity compared to lower-resolution formats. As technology progresses, more devices and streaming platforms support 4K video playback and distribution.