The most immersive virtual reality experiences use a stand alone VR headset or a combination of PC , VR headset, and software.
The standalone VR headsets require a PC in order to update the headset software. Handheld controllers can also be added for additional control over the virtual environment. These VR devices can track a user's movement, called "positional tracking", within a space - a feature not available when using VR apps and a smartphone.
The healthcare industry continues to develop applications and uses for these types of devices.
Some areas of high development are PSTD treatment, anxiety disorder treatment, and pain management.