Glucose monitor in apple watch is a reccuring subject since the hiring of C8 medisensors engineers in 2013.
C8 Medisensors Glusoce monitor in 2011, FDA approved in 2012
hiring of C8 medisensors engineers in 2013
9to5mac.com
patent in 2018
appleinsider.com
C8 Medisensors Glusoce monitor in 2011, FDA approved in 2012

C8 MediSensors Answers My Questions about the HG1-c Noninvasive CGM
www.mevsdiabetes.com
hiring of C8 medisensors engineers in 2013

iWatch's novelty emerges as Apple taps sensor and fitness experts - 9to5Mac
Apple has begun assembling a team of hardware and software engineering, medical sensor, manufacturing, and fitness experts, indicating the company...

patent in 2018

Apple patent hints at non-invasive glucose monitoring tech for Apple Watch | AppleInsider
A patent application published Thursday potentially offers clues into Apple's rumored non-invasive glucose monitoring solution, diabetes tracking technology considered to be a "holy grail" of medical science.