There are significant technological differences. EyeToy is primarily a camera. Kinect is a camera coupled with two IR emitters that project a dot pattern on the

There are significant technological differences. EyeToy is primarily a camera. Kinect is a camera coupled with two IR emitters that project a dot pattern on the room. The presence of the dot pattern and Kinect's ability to interpret the dot pattern projection on to 3-dimensional surfaces drastically improves the Kinect's "perception" of a 3D environment when compared with EyeToy. EyeToy relies primarily on motion detection algorithms that interpret a composite, 2D image.