Your $1,000 CGM is Obsolete. Why Sweat is the Real Future of Health Tracking.
UCSD’s new sweat-tracking smart ring might not beat CGMs on accuracy yet, but dismissing it as an inferior substitute misses the point. The real breakthrough isn’t a single device, but the multi-modal sensor fusion combining sweat analysis with Raman and mid-infrared spectroscopy—the first real step toward needle-free, ambient health tracking.