If this is a serious prediction, I am sceptical. A number of years back Google tried to develop a non-invasive glucose monitor. The monitor relied on a sensor a

If this is a serious prediction, I am sceptical. A number of years back Google tried to develop a non-invasive glucose monitor. The monitor relied on a sensor attached to a contact lens, that measured chemicals in tears. They failed. Measuring glucose without having access to the fluids inside the body is something that I doubt even Apple would be able to accomplish.