What is NOT a Self-Balancing Electric Unicycle?

For the purpose of this site, there has to be a line drawn somewhere, so we will only discuss devices with single-wheels (and in some cases tandem wheels), where the driver stands on platforms that are left and right of the wheel.

If a vehicle is pedal driven (i.e. mechanical unicycle), or if the feet are between the wheels (similar to Segway) or if the user stands sideways to the movement, more like on a skateboard (e.g. Onewheel) then they are not what this site has as its focus.