The "480" in 480p refers to a vertical resolution of 480 pixels. The "p" stands for progressive scanning, which means the lines of the image are drawn in sequence rather than interlaced. In the world of Standard Definition (SD), 480p is often considered the "enhanced" version because it offers a smoother, flicker-free image compared to the older 480i (interlaced) signals used in traditional analog television.
480p is generally considered the minimum acceptable quality for watching on small phone screens but may look blurry on large TVs. 480p movie