What is the difference between a 360-degree surveillance video recorder and a fixed video recorder?

Most surveillance cameras refer to cameras with fixed focal length, which cannot be rotated and zoomed. And 360-degree smart cameras may refer to two kinds.

1, the first one is a camera that can rotate and zoom 360 degrees.

2. Secondly, it refers to the fisheye lens with the viewing angle of 180 degrees, which can be installed on the ceiling and can see all the images below the ceiling.