wearable sensors Archives

Non-Invasive Glucose Watches: Optics vs Bioimpedance

March 29, 2026March 13, 2026 by Panji Yudian

Prototype smartwatch using optical and bioimpedance sensors to measure blood glucose non-invasively on the wrist.

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

Inside the Race for Non-Invasive Glucose Smartwatches

March 29, 2026February 24, 2026 by Panji Yudian

3D visualization of a futuristic smartwatch performing non-invasive glucose monitoring with optical sensors

For decades, people with diabetes have relied on invasive methods to monitor blood glucose—finger-prick tests or implanted continuous glucose monitors (CGMs). The promise of a truly non-invasive glucose smartwatch has long been considered the “holy grail” of wearable health technology. As we move through 2025, major technology companies, medical device manufacturers, and semiconductor firms are … Read more