Learn the difference between HD, HDR, 4K and UHD to get the best picture quality and image resolution for your TV. Find what works for your home theater setup.

What is HD, HDR, 4K, and UHD in TV Resolution? - Dolby

UHD is the official name for a display resolution of 3840x2160p and is four times the resolution of HD, which is currently 1920x1080p. You may recognize UHD from TV adverts.

Ultra High Definition (Ultra HD or UHD) has become the standard for modern televisions, monitors, and streaming content. It represents a significant leap in picture quality compared to traditional Full HD, offering more pixels, greater detail, and lifelike colors.

Want to know more about viewing 4K Ultra HD (UHD) and 4K UHD/HDR with your Xfinity TV subscription? Check out our helpful information below, including how to watch it and what you can watch. What is 4K UHD content? 4K UHD resolution is four times full HD, providing a clearer, more vivid picture.

4K Ultra HD (UHD) and High Dynamic Range (HDR) on Xfinity TV

Here you'll find the release dates for all the biggest movies and TV shows on 4K UHD, Blu-ray, and digital.

Explore Samsung 4K TVs for stunning UHD resolution, vibrant colors, and cinematic clarity for every viewing experience. Shop 4K TVs now!

Learn more about UHD/4K TV on Xfinity TV, including how to watch it and what you can watch.