Measuring blood glucose using spectroscopy in a ring-sized device is not yet possible due to challenges in miniaturization, signal accuracy, and interference from skin and movement. While research is ongoing and more extensive wearables (like smartwatches) are making progress, current technology has not yet achieved reliable glucose monitoring in such a small form factor. However, advancements in optical sensors and AI-driven calibration could make it feasible.

Hela Glucose (Movano) is developing a ring using spectroscopy for glucose monitoring, but its accuracy is uncertain due to skin interference and signal limitations. Currently, minimally invasive CGMs (e.g., FreeStyle Libre, Dexcom) remain the most accurate option. Other non-invasive methods, like smartwatch sensors and radio waves, are still in development but face similar challenges.

Spectroscopic methods require calibration against known glucose levels, which can be

challenging in real-time, especially in

a small device.

while the idea of a ring-sized spectroscopic device for measuring blood glucose is intriguing, there seem to be several challenges related to accuracy, practicality, calibration, power consumption, and cost. It might not be the most accurate or practical method available right now, but with advancements in technology, it could become a viable option in the future.

I'm curious about the spectroscopy for non-invasive blood glucose monitoring. Maybe something like using sweat or other bodily fluids that are easier to access non-invasively. Or advanced sensors that can detect glucose through the skin without using light-based methods.

Further research and development are essential to assess the viability of this technology.

I think this might be possible in the future with the great development of using artificial intelligence for biosensors