>>312121951
There's two general paradigms for tracking, inside out and outside in. Outside in relies on hardware outside the device to obtain the position and orientation solution, such as lighthouses. Inside out relies on hardware inside the device to obtain the solution.

You get a better tracking fix for outside in, and your controllers are tracked in space instead of relying on visibility to your headset, but you have to have base stations in your playspace. Another downside at least to me is that you can't turn your lights out because inside-out relies on cameras tracking your room to get the solution. I'd prefer outside in myself for better immersion and controller tracking, but having to buy tripods or do wall mounting for base stations may be a deal breaker to you.