The highest video resolution supported by the WG-30 Wi-Fi is 1920 x 1080 pixels. That's over two times the video resolution of the most common video resolutions of 1280 x 720 pixels (which is also supported by this camera). A video resolution of 1920 x 1080 pixels is equivalent to Full HD video. You will require a Full HD TV or better to appreciate this level of detail.
This camera's video resolution (1920 x 1080 pixels) is actually the best supported video resolution amongst all digital cameras of a comparable spec and age to this digital camera.
A 640 x 480 pixels video resolutions is the worst supported video resolution amongst similar types of camera.
What does "video resolutions" mean?