Very skeptical about this. I'm working with heart rate monitors and different physiological signals. The wrist-based smart watches are still sometimes way off c

Very skeptical about this. I'm working with heart rate monitors and different physiological signals. The wrist-based smart watches are still sometimes way off compared to an ECG baseline, depending on skin type and how they are worn. Even step counting with them is not accurate at all. Can't imagine that Blood Glucose tracking will work anytime soon for a large population.