The highest video resolution supported by the Lumix DMC-GH4R is 3840 x 2160 pixels. That's over nine times the video resolution of the most frequently found video resolutions of 1280 x 720 pixels (which is also supported by this digital camera). In addition, this camera support a video resolutions of 640 x 480 pixels and 1920 x 1080 pixels. A video resolution of 3840 x 2160 pixels is equivalent to 4K Ultra HD video. This has four times the detail of Full HD video.
This digital camera's video resolution (3840 x 2160 pixels) is in fact the best supported video resolution amongst all comparable spec digital cameras that have been around for around the same time as this camera.
A 640 x 480 pixels video resolutions is the worst supported video resolution across similar types of digital camera.
What does "video resolutions" mean?