Study shows wearable could detect pregnancy

Clinical trial results indicate that Ava’s cycle-tracking wearable has potential for future use in pregnancy detection.

In a recent clinical trial Ava conducted in collaboration with University Hospital of Zurich, the Ava bracelet captured physiological changes known to occur in early pregnancy.

More specifically, significant differences in heart rate variability, pulse rate, and temperature between the late luteal phase in conceptive and non-conceptive cycles.

Based on these findings (published in Fertility & Sterility September 2017), researchers concluded that Ava could potentially be able to show the users in the future an indicator of pregnancy based on the changes of the physiological parameters reported at the late luteal phase.

“Our findings could pave the way for the continuous assessment of the occurrence of pregnancy without any effort from the user and consequently add an innovative option for early pregnancy detection,” noted Ava co-founder and vice president of research & development Peter Stein.

Launched to the public in July 2016, Ava’s cycle tracking bracelet is used by women hoping to optimise their chances of conception by more precisely determining the fertile window. To date, the bracelet has already helped over 1,000 women conceive and Ava users from across the US and Europe are reporting about 15 pregnancies a day.

This new development opens the door to a broader opportunity for the bracelet’s technology to span a wider variety of women’s health and wellness applications.

“We’re excited about this research because it fits in with our long-term vision, which has always been for Ava to become lasting companion for women, giving them data-driven and scientifically proven insights along all stages of their reproductive lives,” explained Ava co-founder Lea von Bidder. “This is another step in that direction.”




Lu oversees the content for all of the publications within the Rapid Life Sciences portfolio, which includes Digital Health Age, Medical Plastics News, Med-Tech Innovation Magazine and European Pharmaceutical Manufacturer. Reach Lu at

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