Low Latency 360° Head Tracking
The Rift uses custom tracking technology to provide ultra-low latency 360° head tracking, allowing you to seamlessly look around the virtual world just as you would in real life. Every subtle movement of your head is tracked in real time creating a natural and intuitive experience.
Stereoscopic 3D
The Oculus Rift creates a stereoscopic 3D view with excellent depth, scale, and parallax. Unlike 3D on a television or in a movie, this is achieved by presenting unique and parallel images for each eye. This is the same way your eyes perceive images in the real world, creating a much more natural and comfortable experience.
Ultra Wide Field of View
The Oculus Rift provides an approximately 100° field of view, stretching the virtual world beyond your peripheral vision. Your view of the game is no longer boxed in on a screen and is only limited by what your eyes can see. The combination of the wide field of view with head-tracking and stereoscopic 3D creates an immersive virtual reality experience.
Source: www.oculusvr.com