Samsung Galaxy Watch 8 Measures Antioxidant Levels via Thumb Scan
TL;DR. The Samsung Galaxy Watch 8 introduces an Antioxidant Index feature that uses a five-second thumb scan to estimate carotenoid levels. - Key spec: Multi-wavelength absorption spectroscopy via BioActive Sensor - Standout: First major wearable to offer an 'Antioxidant Index' score - Caveat: Not for diagnosis, intended as a health trend monitor
- Samsung Galaxy Watch 8 features an Antioxidant Index using a thumb scan.
- The watch estimates skin carotenoid levels using multi-wavelength absorption spectroscopy.
- The sensor uses yellow, blue, purple, and green LED light and photodiodes to measure absorption and reflection.
- The feature provides a score from 0 to 100, indicating fruit and vegetable intake.
- Samsung validated the sensor against Raman spectroscopy and clinical data, but warns it's not for medical diagnosis.