I have heard about untethered or wireless VR. Are they any good?
Firstly, wireless and stand alone are different - although they may look the same. We can use a wireless HMD which is tethered (wirelessly) to a PC. The engine room of any powerful VR headset is the PC (graphics card) it is connected to. The most immersive and accurate experiences are still created when there is a “PC” attached. VR is a revolution in computing and we watch this space very closely. But for today, and the foreseeable future, we know lower quality x-rays and simulations will not give you or your students the best outcomes.