The TrackIR 5 and the Tobii Eye Tracker 5 are two big competitors for head tracking in the sim community. This video explores their usability within combat flight simulators and first person shooters.

0:00 Introduction
1:07 Hardware
1:24 Sensor placement
2:31 Software
2:55 Head tracking
4:48 Responsiveness
5:38 6 degrees of freedom
6:47 Precise movement
8:50 TrueView
9:45 Centering
10:22 Eye tracking
11:28 Dogfighting with Tobii Eye Tracker 5
12:43 Dogfighting with TrackIR 5
14:10 Wobble phenomenon
14:51 Conclusion