4K, also known as Ultra HD (UHD), refers to a resolution of approximately 4000 pixels along the horizontal axis. It's a significant improvement over 1080p (Full HD), offering a much more detailed and immersive viewing experience.

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: This term refers to a resolution standard for digital displays and video content. 4K resolution, also known as Ultra HD (UHD), offers a higher level of detail and clarity compared to standard HD. A 4K display has a resolution of approximately 3840 x 2160 pixels. When content is described as "4K," it means it was produced or can be displayed in this high-resolution format.