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Ava Science launches wearable fertility tracking bracelet


SAN FRANCISCO - Ava, a medical technology company focused on innovations in  women’s reproductive health, recently announced the official launch of its first product — the Ava bracelet, a fertility tracking wearable that uses new technology to detect a woman’s fertile window.

An FDA-approved Class One medical device, the Ava bracelet was proven in a recently concluded clinical study at the University Hospital of Zurich to detect an average of 5.3 fertile days per cycle with 89% accuracy.

“Women spend so much time and emotional energy trying to accurately track their cycles, often using multiple methods in tandem,” explained Brigitte Leeners, lead author of the clinical study. “Timing intercourse around ovulation is critical for conceiving, but the current options for doing so are inadequate. We’re long overdue for a device like Ava that detects the fertile window precisely and easily.”

Ava is the first fertility-tracking device to identify the fertile days during a woman’s cycle in real-time. Since Ava’s bracelet sensors collect data continuously throughout the night, it accurately detects in advance an average of at least five fertile days per cycle without the hassle, messiness and invasiveness of other methods like ovulation sticks and BBT thermometers.

Each night, Ava’s sensors collect three million data points around physiological parameters including pulse rate, breathing rate, sleep quality, heart rate variability and temperature, all of which correlate with the rise in reproductive hormones estradiol and progesterone. With this information, Ava is able to detect a woman’s entire fertile window.

“After a lifetime spent trying to avoid pregnancy, couples who begin trying to conceive often don’t realize how difficult it can be to get pregnant," stated Lea von Bidder, Ava Science CEO. "For most women, there are only about six days per month where there is any possibility of conceiving, and only three days per month where it is likely,” she said. “Even under the most favorable conditions — a young, healthy couple having frequent unprotected intercourse — there is only about a 25% chance of getting pregnant in a given month.”

According to most experts, for many couples, the odds are even lower. “Even if you’re tracking your periods to try to optimize your timing for conception, only about 30% of women have fertile windows that fall entirely within the time that clinical guidelines predict,” von Bidder said. “That’s why an accurate, reliable way to detect the full fertile window is such a breakthrough. Ava can cut the time it takes to get pregnant in half.”

Ava is available now at for $199.


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