Non-Invasive Glucose Watches: Optics vs Bioimpedance
For decades, glucose monitoring has meant one thing: needles. Even with continuous glucose monitors (CGMs), users still insert a tiny sensor under the skin. The promise of a truly non-invasive smartwatch — one that reads glucose through intact skin — has hovered between breakthrough and hype for nearly 20 years. Between 2025 and 2028, however, … Read more