Apple seeks blood glucose breakthrough for the Watch

One of Apple’s goals for the technology is to create a preventative measure that warns people if they’re pre-diabetic

Adding the monitoring system to the Apple Watch, the ultimate goal, would also make the device an essential item for millions of diabetics around the world.

Apple has a moonshot-style project underway that dates back to the Steve Jobs era: Noninvasive and continuous blood glucose monitoring.

The goal of this secret endeavour — dubbed E5 — is to measure how much glucose is in someone’s body without needing to prick the skin for blood. After hitting major milestones recently, the company now believes it could eventually bring glucose monitoring to market, according to  people familiar with the effort.