A 4K UHD TV is a television that offers a resolution of 3840 x 2160 pixels, which is four times the resolution of standard 1080p HD TVs. This higher pixel count results in sharper images and more detailed visuals, making it ideal for large screens and close viewing distances. In addition to improved resolution, many 4K UHD TVs support high dynamic range (HDR) technology, enhancing color and contrast. This means that viewers can enjoy a more vibrant and lifelike picture. With the growing availability of 4K content from streaming services and Blu-ray discs, these TVs are becoming increasingly popular among consumers.