Microsoft is developing the next version of its smart glasses, called Glabella, that can work as a cuff-less, wearable and unobtrusive blood pressure measuring device, according to a new report.

The device incorporates optical sensors, processing, storage, and communication components, all integrated into the frame to passively collect physiological data about the user without the need for any interaction, according to a paper published on Proceedings of the ACM Journal of Interactive, Mobile, Wearable and Ubiquitous Technologies. Glabella continuously records the stream of reflected light intensities from blood flow as well as inertial measurements of the user's head.