Apple has finally upgraded its Apple TV to 4K i.e. 4K Ultra HD resolution of 2160p. This means you can enjoy more detailed images with improved quality owing to about 8.3 million pixels in the Full HD 1080p images. Not only the 4K, the new Apple TV has HDR i.e. High Dynamic Range that will give you the brightest bright and the darkest darks for a more realistic picture quality and overall video performance.