[doxick]

My garmin watch measures blood oxygen, heart-rare, breathing patterns, sleep patterns, stress-levels, etc

Usefull? It is if you use it. I do triathlons and knowing exactly where my blood-sugar level is at would allow me to focus better on the type of nutrition and the impact of it while working out. It would also tell me if i was a bit down before a race, so i can take some food.

Basically: this is a game-changer for amateur athletes, which would create a tremendous market for it. People i know already use the patches to measure as well, or lactate measurements, ketone measurements, etc. and that's just at the casual amateur level.

Another application that springs to mind is knowing when to eat instead of just having lunch and sugar-crashing 2 hours later in the office.

[stevage]

I also wonder if monitoring your blood sugar is a potential way to avoid becoming a Type 2 diabetic.

[fragmede]

That's what HelloLingo is selling. A wearable blood glucose monitor for 2 weeks, like diabetics wear, so non-diabetics can get a better feel for their blood sugar level and how what they do affects it. https://www.hellolingo.com