The tradeoff between a lower-quality experience and a higher degree of encumbrance is magnified in augmented reality. The most impressive product in the field, Microsoft’s HoloLens, operates independently, but — like VR products — is primarily intended for use in rooms. It contrasts dramatically with the visionary but fatally flawed Google Glass, which was intended to be an ever-available provider of widget-like metadata for the world at large. Unlike high-end VR systems, the HoloLens is an independent unit, relying neither on a PC or smartphone.

Source: Tech giants face the harsh reality of VR and AR | ZDNet