Can a Wearable Really Track Your Hormones Without a Blood Draw? The Science Behind Clair Health

The provided text details the emergence of two innovative healthcare companies, Clair Health and Xella Health, which utilize advanced technology to address long-standing gaps in women's medical diagnostics. Clair Health has developed a non-invasive wearable device that employs artificial intelligence and ten distinct sensors to estimate hormone fluctuations in real time by monitoring physiological markers like skin temperature and heart rate. Meanwhile, Xella Health offers a precision health platform that combines blood testing with multi-omics analysis to identify over 130 conditions frequently misdiagnosed in women, such as endometriosis and PCOS. Both startups secured significant seed funding in June 2026, reflecting a growing investor interest in femtech solutions that empower individuals to access their own biological data. While their approaches differ—one focusing on continuous monitoring and the other on deep-dive diagnostics—both aim to modernize the understanding of the menstrual cycle beyond traditional models. Despite their promise, the sources note that these technologies are currently positioned as wellness tools and still require rigorous independent clinical validation and FDA approval.