Valuable wearables should measure something clinically relevant, accurately measure what they claim to measure, provide real-time feedback, and offer the user control over the outcome.

“you know it's like are you measuring something that matters I don't want a wearable that's telling me something that's irrelevant clinically is the device actually measuring what it claims to be measuring is it am I able to get feedback in real time because that was the problem with the Libra is you couldn't get real-time feedback you know unless you were gonna carry around this other device it came with whereas with the Dexcom you're getting real-time feedback and so as real time as exists meaning when you eat something you don't see your glucose move at that moment but I certainly know after a meal how that meal or the amount of exercise with the amount of stress I was under impacted things and then do I have an ability to sort of fix it do I have any control over the outcome”