public Vector3 velocity ;



This allows you to track how fast the character is actually walking, for example when it is stuck at a wall this value will be the zero vector.

Note: The velocity returned is simply the difference in distance for the current timestep before and after a call to CharacterController.Move or CharacterController.SimpleMove. The velocity is relative because it won't track movements to the transform that happen outside of the CharacterController (e.g. character parented under another moving Transform, such as a moving vehicle).

no example available in C#