Nothing else comes close. The visibility of small details in an image is called resolution. The higher the resolution, the more you can make out in the picture. When you point the camera at your subject, the more pixels the camera has to capture the image, the more detail you will see. And when you zoom in, you concentrate the same pixels on a smaller area, capturing even more detail.
High resolution is all about pointing lots of pixels at a small area.
The human eye is something like a digital camera. It uses many pixels to capture whatever is in view. To zoom in on something with your eyes, you just have to look straight at it. TrueLook is based on research into how the human eye sees small details while seeing everything around it at the same time. Generic webcams can't come close to either that range or resolution.