With GoPro Hero8 Black, you can record your videos at a highest resolution of 3840 x 2160 at 60p,50p,30p, 25p, 24p fps with bit rates up to 78 mbps and save in H.264 and H.265 formats. GoPro Hero8 Black's 4K is the common standard resolution in consumer video world.
High-Speed Video
Hero8 Black features a high speed mode where it captures videos at 240fps which helps to create slow motion videos. If you shoot a video at a frame rate of 240fps and play it back at 24fps, the video will be 10x slower and longer than normal.
Microphones, Speaker and Headphone Connections
GoPro Hero8 Black has a built-in Yes microphone and a Mono speaker. GoPro Hero8 Black also has a port for an
external microphone so you can record high quality sound with the help of an external microphone. Unfortunately, it doesn't have a headphone port though.
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If you are getting into videography and want to know what are the must-have video accessories for your camera, read our article:
Essential Videography / Filmmaking Accessories for your Camera
Electronic Video Stabilization
GoPro Hero8 Black also features an Digital Video Stabilization mode where videos are stabilized in-camera while you are shooting. Keep in mind that this effect may crop your videos a little bit and doesn't help stabilizing still images. This kind of video stabilization effect can be replicated by using some of the advanced video editing softwares in your PC.