AR VR headset market forecast for 2018 by IDC

The combined AR / VR headset market will be growing at 48.5 percent to 12.4 million units in 2018, according to IDC report.
AR VR headset forecast by IDC
The report said shipments for augmented reality (AR) and virtual reality (VR) headsets will grow to 68.9 million units in 2022 with a five-year compound annual growth rate (CAGR) of 52.5 percent.