Most action cameras choose a wide-angle or fisheye lens to capture as much of the scene as possible.
Different brands offer different distortions and fields of view, so it’s worth watching some footage before you buy a certain brand to see if you like the look of it.
Fisheye lenses have a curved barrel distortion whereas wide-angle footage has a linear distortion. The best action cameras will offer different fields of view and distortions so you have options to pick the one best suited to what you’re filming.
In recent years, 360 cameras have made huge leaps forward in quality.
These cameras record a full 360-degree scene and allow you to pick and choose your framing and effects in post-processing, while also offering incredible stabilization, which can be a huge advantage when recording high-intensity moments.
Their disadvantages are they require a lot of editing as well as computing power and memory as the video files are huge.