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When it comes to TVs, 4K and Ultra HD (or UHD) are referring to the same resolution. Those TVs, along with Ultra HD Blu-ray, ...

For simplicity's sake we'll refer to the technology as 4K here, but you will find it called Ultra HD just as often - it essentially refers to the quality of the video picture you're seeing ...

A 4K screen has a resolution of 3840 x 2160 pixels, which is also sometimes called Ultra High Definition (UHD). This is four times as many pixels as Full HD 1080p, which has a resolution of 1920 x ...