
Kaitlyn Cimino / Android Authority
TL;DR
- Garmin has filed a patent describing a method to estimate HbA1c using optical sensors built into its watches.
- The approach would focus on long-term glucose trends rather than real-time readings.
- It’s theoretical for now, but echoes the market push for non-invasive metabolic tracking.
Glucose tracking is shaping up to be the next major frontier in wearable health. Nearly every major player has been rumored to be chasing a wrist-based solution, and now Garmin…

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