Today at CES 2017, Dell, HP, Acer and more companies displayed their Windows Holographic VR headsets. All of these VR headsets share same concept, a pair of screens inside and a pair of cameras on the outside.
Windows Holographic headsets sports front two cameras with each uses slightly different positioning to examine the space around the headset and track your position. It may require more processing on the part of the computer, but it also means the headsets can be smaller and lighter and less complicated.
Currently, Windows Holographic is still a work in progress and will be released with Windows 10 Creators Update in April 2017. There is no detail on headsets pricing or availability.