A Glucose Sensing Watch | Sabih Chaudhry PhD

Ever wished continuous glucose data didn’t require needles, adhesives, or a prescription? We sit down with Sabih Chaudhry, PhD, founder of AFON Technology, to unpack GlucoWare—a wrist-worn, noninvasive glucose wearable that uses low-power RF signals to read blood in near real time. Instead of piercing the skin, the device couples with your wrist, wakes every five minutes, pings a tiny signal, processes the reflection in under 200 milliseconds, and sends the data to your phone before going back to sleep. The result: familiar CGM-style insights without the interstitial lag, skin-tone limitations, or daily hassles.We explore the journey from a rough “antenna and saline” lab hack to a robust, manufacturable design tested in environmental chambers and on robotic arms. Sabih explains how the team tackled motion noise, temperature swings, and material choices, all while building for scale and regulatory approval. We compare RF spectroscopy to optical approaches, discuss accuracy targets, and outline a roadmap aimed at non–insulin-dependent type 2 users first, with CE marking in sight and the FDA pathway running in parallel. Along the way, we dig into fundraising lessons, the choice to work with high-net-worth investors, and the newly inked partnership with a global manufacturer.Beyond the tech, the conversation lands on impact. A painless, over-the-counter path to real-time glucose could help more people see spikes after meals, personalize diet and exercise, and improve time-in-range—key steps toward lowering HbA1c and reducing complications that strain health systems. The design leans fashion-forward to remove stigma, while the app mirrors clinical conventions so clinicians and users can speak the same language. Looking ahead, AFON’s modular electronics hint at future biomarkers—lactate, ketones, alcohol—and a smaller form factor suitable for kids, all pointing toward a smarter, more humane wearables era.If you care about metabolic health, diabetes innovation, or the next leap in consumer-friendly biosensing, this one’s worth your queue. Subscribe, share with a friend who watches their glucose, and leave a review telling us what biomarker you want measured next.https://afontechnology.com/⭐ Enjoying the show? Please leave a 5-star review on Apple Podcasts — it takes 30 seconds and helps more people discover the science of health and longevity. Thank you!New episodes every other Tuesday. Subscribe so you don't miss one.Continue this conversation on Substack: https://robertlufkinmd.substack.comLies I Taught In Medical School — Free sample chapter: https://www.robertlufkinmd.com/lies/Web: https://www.robertlufkinmd.comYouTube: https://www.youtube.com/robertlufkinmdX: https://x.com/robertlufkinmdInstagram: https://www.instagram.com/robertlufkinmd/TikTok: https://www.tiktok.com/@robertlufkinLinkedIn: https://www.linkedin.com/in/robertlufkinmd/