Garmin Patents Wrist-Based Blood Sugar Tech, Joining High-Stakes Health Wearable Race

Garmin has secured a patent for a system designed to estimate blood glucose levels using light sensors from a wristwatch, a significant step in the long pursuit of non-invasive monitoring. The filing, first noted by Android Authority, details a method using existing optical sensors—common in fitness watches for heart rate and oxygen tracking—to analyze reflected light and infer glucose concentration.

The technical approach involves multiple wavelengths of light and machine learning to calibrate readings to an individual user over time, addressing challenges like variations in skin tone and physiology. While the concept of optical glucose sensing is not new, Garmin’s entry is notable given its established manufacturing scale and dedicated consumer base in the fitness and health wearable market.

This move places Garmin alongside other major players, most notably Apple, which has invested heavily in similar research for the Apple Watch. The field remains technically and regulatorily complex. Any device claiming to measure or estimate blood glucose would face rigorous FDA review as a medical device, given the potential risks of inaccurate data for insulin users.

Industry observers view the patent as a strategic marker of intent rather than a product guarantee. The potential market is substantial, fueled by growing consumer focus on metabolic health. However, the path from patent to a reliable, approved consumer feature is long and uncertain, with past attempts by various companies failing to achieve necessary accuracy. For Garmin, known for specialized health wearables, success could redefine its product lineup, but the finish line for this technology remains unseen.

Source: Webpronews