The ViviCam 8400 supports a maximum video resolution of 320 x 240 pixels. That's 75% less video resolution than a 640 x 480 pixels camera, which is the most common video resolution supported by waterproof cameras that were launched around the same time as the ViviCam 8400. 640 x 480 pixels is also supported by this digital camera.
A 320 x 240 pixels video resolution is actually the worst supported video resolution across all cameras that are a comparable age to the ViviCam 8400.
The best supported video resolution across similar types of digital camera is 1920 x 1080 pixels.