This wrist wearable tracks your hormones in real time
Stanford grads Abhinav Agarwal and Jenny Duan have launched Clair Health, introducing a wrist wearable that tracks key hormones like estrogen and progesterone in real time—no blood, urine, or saliva tests needed.
The device uses 10 biosensors to monitor over 130 health signals, including skin temperature and heart rate.
It's designed for women dealing with fertility issues, PCOS, etc.
Clair's wearable uses AI to combine all those sensor signals for precise hormone tracking.
Tested on over 40 women across 127 cycles, it nailed a cycle-phase accuracy of 94% and can spot LH surges with 87% sensitivity.
It's designed for women dealing with fertility issues, PCOS, athletes, or anyone navigating perimenopause.
You can join the waitlist at wearclair.com
All your health data stays securely on your phone by default—Clair offers optional encrypted cloud backup.
If you're interested, you can join the waitlist at wearclair.com for a big discount and lifetime app access.
Shipping is planned for November 2026, and the company plans to seek FDA approval.
Clair positions its wearable against products such as Mira, Proov
Clair positions its wearable against products such as Mira and Proov urine kits and wearables like the Oura ring by inferring hormonal states from wrist sensors in near-real time—all in one device built just for this purpose.