Liquidmetal Technologies Inc (LQMT)

[rige]

You are right about a 'tiny needle' on the iwatch.
http://appleinsider.com/articles/17/06/21/diabetes-monitor-exec-details-apple-watch-connectivity-refutes-claims-of-other-hardware-partnership

No magic bullet for monitoring


Sayer discussed the current technology, and reiterated that it was still invasive, if less so than previous generations of the technology. At present, the sensor is a small wire about the same width as a human hair that is inserted just below the skin, and that performs the glucose measurement. He dismissed the possibility of an immediate deployment of external sensors being able to do the measurement, as accurate information is demanded at all times.

http://appleinsider.com/articles/17/05/15/rumor-next-gen-apple-watch-may-support-glucose-monitoring-smart-bands

Future Apple Watch models will reportedly include support for glucose monitoring, as well as "smart watch bands" that should expand features without requiring people to buy an entirely new device.