The Ava wristband is worn at night and records the necessary data mainly in the second half of the night. In the morning, the user synchronizes the data with a smartphone app - and receives the calculation of her fertile days. (Image: Ava AG)
Since January 2017 a sensor wristband that, according to the manufacturer, is capable of detecting a woman's fertile days in her cycle with 89 percent certainty has been on the market. Empa helped developing the sensor technology. When is the right moment to get pregnant? A tricky question for couples who wish to have children. For many, using the temperature or rhythm method to pinpoint the fertile days is too inaccurate; other methods require lab tests and are thus inconvenient. The medtech start-up Ava is now looking to answer this question with a state-of-the-art sensor wristband, which is worn at night and registers nine physiological parameters in the woman's calm sleep cycles: resting heart rate, skin temperature, heart rate variability, sleep, breathing rate, movement patterns, circulation, bio-impedance and heat loss from the skin. In the morning, the data is synchronized with a smartphone app, which calculates the increase in the sexual hormones estradiol and progesterone. The Ava wristband is able to display 5.3 fertile days per month with an accuracy of 89 percent, as the manufacturer writes in a press release citing a study conducted at the University Hospital in Zurich.
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