Ava: fertility and hormone tracking


Accurately predicts fertility window up to 5 days in advance. Tracks changes in hormonal levels, skin temperature, stress levels, sleep quality.


  • science-backed fertile window detection that is suitable for cycle lengths between 24 – 35 days
  • detects 5.3 fertile days per cycle at 89% accuracy
  • measures: resting pulse rate, skin temperature, heart rate, blood perfusion, breathing rate, movement, heat loss, bioimpedance
  • tracks hormonal swings, fertile window, stress levels, sleep quality
  • future: perimenopause and menopause tracking
  • much more accurate than calendar method
  • worn only while you sleep
  • FDA and CE certified


Other methods of fertility tracking rely on only a single parameter, and thus cannot provide a complete picture of your fertility in real time. Ava detects the very first signs that the fertile window is beginning, and confirms when it ends. Collects over 3 million data points and fed into algorithms for pattern recognition.

Clinical Study:


Ava Women: https://www.avawomen.com/


Zurich, Switzerland and San Francisco, USA.


Available in Europe and USA now: https://www.avawomen.com/order/

$249 + $5/month plan for data

Ava worn by sleeping model. Ava bracelet.

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