https://medium.com/techgenyz/microsofts-hololens-2-with-improved-hand-tracking-system-debuts-at-mwc-d2c4d44dfafe

MWC 2019 in Barcelona saw the official launch of Microsoft’s second-generation AR headset HoloLens 2. The headset is a much lighter and cheaper version of the original four-year-old original headset and has made its debut with new features including better visuals, and “the most advanced hand tracking system” according to CNET.

Besides retaining the features of its predecessor, Microsoft Hololens 2 also has an eye tracking feature, enabled by cameras and sensors near the nose ridge pointing at the user’s eyes. Another important feature is an onboard iris recognition that uses Windows Hello for logging in to HoloLens 2.