For Women's Fertility & Wellness

IN THE NEWS

10 Million+ People

Achieved their health goals with Femometer

Reproduction

Cycle Management

Nutrition and Diet

Mental Wellness

Femometer User Stories

Community-shared stories on women's fertility, pregnancy, and healthy living.

Femometer provided me with information and answers to help me know how my body works! Our baby danced yesterdayand twice today. It's like a miracle.

-- Amelia

Got to see our little one. Heartbeat at 166.What doy'all think boy or girl? Still didn't believe I'm in the 3rd trimester!

-- Brandie

I've been using Femometer Vinca to track my cycles to be prepared for upcoming menstruation or ovulation.

-- Katie

Smart Ring Air

✓ Light and thin
✓ Radiant silver outer
✓ Comprehensive health tracking
✓ No app subscription fee

Smart Ring Gen2

✓ Precise sleep, vitals, fitness, and cycle insights in one ring
✓ Clean and sleek white, designed for women
✓ Wear-resistant and 100-meter waterproof
✓ No app subscription fee

Awards and Certifications

The Experts Behind Femometer

Dr. Jan Rydfors

MD, Stanford University School Of Medicine

Dr Rydfors received his Medical degree and specialization training from Stanford University Medical Center. He is an Assistant Adjunct Clinical Professor at Stanford University Medical Center and is board certified.

He is the initial creator and current Co-Author of the popular "Handbook in Obstetrics, Gynecology and Infertility". Now in its sixth edition, the main handbook used by all Obstetricians and Gynecologists in training in the US.

He is the Chief Medical Advisor for the American Pregnancy Association. He is the recipient of the Compassionate Doctor and Patient's Choice award.

Femo Blogs

Are Smart Rings Worth It? The 2026 Definitive Guide to Wearable Intelligence

The wearable market has undergone a seismic shift. While the early 2020s were dominated by the "notification-heavy" smartwatch, 2026 is the year of Invisible Tech. The smart ring has matured from a niche fitness gadget into a sophisticated biometric laboratory that sits on your finger.

Best Smart Ring for Women in 2026: Fertility and Cycle Tracking Compared

Compare the best smart rings for women's health in 2026. We rank Femometer, Oura, and Ultrahuman for fertility tracking, accuracy, and value.

How the Femometer Ring Tracks the Menstrual Cycle Through Finger Temperature

Femometer has made the upgrade of the ring, and the second generation of smart rings has entered the pre-sale stage and is expected to be officially launched in October!

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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.