It is widely believed that the human eye can distinguish between 1080p and 4K footage, although the degree to which this is possible depends on a number of factors. The main difference between 4K and 1080p is the resolution, with 4K offering a significantly higher resolution than 1080p. This means that 4K footage will have a greater level of detail and clarity than 1080p footage. However, the ability to perceive this difference will depend on the size of the screen and the distance at which the viewer is sitting. In general, it is easier to distinguish between 4K and 1080p on larger screens and when sitting closer to the screen.