Oculus is the first headset kit I ever used that effectively solved the lateral motion problem. Specifically, the human neck isn't hinged so that the head rotates around a pivot right behind the eyes; if you tilt your head up and down, your point of view is moving forward and backward, not just tracking.
3DOF trackers (like Google Daydream) and low-fidelity 6DOF trackers don't capture that dimension of data, and even if you don't consciously notice it's missing, strapping into anything of equivalent fidelity to Oculus Rift or better makes you really notice the difference. It's night-and-day.
3DOF trackers (like Google Daydream) and low-fidelity 6DOF trackers don't capture that dimension of data, and even if you don't consciously notice it's missing, strapping into anything of equivalent fidelity to Oculus Rift or better makes you really notice the difference. It's night-and-day.