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What is a 4K TV?

From HD to 4K

A 4K Ultra HD TV creates images using 8.3 million pixels - 6 million more than Full HD. This means every image on a 4K TV brings to life superior quality pictures with more depth and more clarity. The ultimate viewing experience.

With an incredible resolution of 3840 x 2160, a 4K Ultra HD TV
has almost quadruple the res of a full HD TV.
The difference is clear to see.

What are the benefits of a 4K TV?

Incredible clarity.

Incredible clarity

With an impressive 3840 x 2160 resolution, 4K Ultra HD televisions don't just give you greater definition. You also get richer, brighter colours, with more depth, making viewing more realistic than ever before.

Upscale the everyday.

Upscale the everyday

4K Ultra HD televisions can boost standard and Full HD content to near 4K quality. Bringing  the 4K experience to must-see sporting events, classic movies and breathtaking documentaries straight away.

The future of TV.

The future of TV

4K is the standard of television to come and many broadcasters and streaming services are increasing the amount of 4K content they offer. With a 4K Ultra HD TV you'll be set for all the highest quality new releases.

 Get closer to the action.

Get closer to the action

Combining enhanced colours and brightness, HDR allows images to appear more realistic and lifelike, with a greater sense of depth and tone. So you can enjoy  brilliant brightness, shadow detail and vibrant colour just as the creator intended.

Ultra HD

Not all 4K UHD TVs offer the same viewing experience. TVs with the Certified Ultra HD or 4K HDR Ultra HD logos offer the 'true' Ultra HD experience. Certified Ultra HD is the logo used by Digital Europe, representatives of the digital technology industry in Europe, to guarantee that a TV has genuine 4K quality.

What makes a TV certified Ultra HD or UHD Premium?

Each certified TV needs to meet a strict set of Ultra HD standards and performance levels to offer a premium viewing experience.

These include:

  • A full pixel count of 3840 x 2160
  • Use of red, green and blue pixels without additional non RGB pixels

  • Having a full pixel count that ensures true UHD clarity

  • Having only red, green and blue sub pixels ensures true UHD 4K colour

  • High Dynamic Range for peak brightness and black levels

What can I watch in 4K ULTRA HD?

There's lots of entertainment content available in 4K, including smart streaming, smart sticks and Ultra HD sports channels.

Smart features

Smart TVs offer a range of apps with 4K content, while you can get access to a range of free and subscription entertainment with a Smart TV box or smart stick.

Live 4K TV

Live TV is increasingly becoming available in 4K, including BT's 4K UHD sports channels and the 2TB Sky Q box, which offers a range of movies, drama, documentaries and sport in 4K.

Upscaled full HD

4K Ultra HD TVs will instantly upscale standard and Full HD content, letting you enjoy your favourite shows in enhanced quality immediately.

Home cinema

 Sonos Beam Gen 2 sound bar.

Find the right sound

Combine outstanding visuals with audio that packs a punch. Give your TV a true voice with a sleek, space-saving sound bar.

Shop all-in-one sound bars

Want to take your audio experience a notch higher? Choose a soundbar paired with a subwoofer.

Shop soundbars with subwoofer

Brands we love

Essential accessories

From soundbars to 4K Blu-ray players, find the accessories to complete your 4K TV experience.

Additional TV help

More guides and help that you might find useful.