4K/Ultra HD, which does use more data, isn't available when you're watching the BT Sport app on a mobile. Watching HDR on a smartphone or tablet doesn't use any more mobile data than regular SD or HD streams.
How to watch BT Sport Ultimate > Mobiles and tablets HDR can be offered on both HD and 4K resolutions.īT Sport Ultimate is included with some of our plans and available as an add-on with others. HDR: High Dynamic Range TV standard that allows screens to give you improved contrast, more accurate colours and more vivid pictures than regular sets. HD pictures have more pixels, which means they are much sharper than standard definition TV.ĤK TV: 4K pictures are even sharper than HD, with four times as many pixels, which means images are superior with more fine detail. HD TV: High-Definition was introduced in the mid 2000s. Many TV channels are still broadcast in SD.
SD TV: Standard Definition TV, you receive through the aerial for a terrestrial broadcast. More pixels means more detail, so clearer and sharper images. As TV technology has improved over the last decade or so, there's been an increase in the number of pixels that make up these images.
TVs with HDR can display a wider range of colours from black to white, so you can see more details in the very darkest and brightest areas of the picture.ĭigital images we watch on TV are made up of dots (or pixels). It does that by offering higher contrasts between light and dark, more vivid colours and brighter images on screen. While 4K TV is about adding more pixels, HDR (High Dynamic Range) is about creating better, more dynamic-looking pixels.
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