Garmin smartwatch uses Natural Cyclesº to track fertility

  • April 1, 2026
  • Steve Rogerson

Garmin is incorporating technology from Natural Cyclesº to bring an FDA-cleared birth control app to select smartwatches.

Garmin users can now integrate with the temperature-powered Natural Cyclesº app, which turns Garmin skin temperature data into fertility insights for women’s health.

Swedish firm Natural Cyclesº is the company behind the first and only FDA-cleared app for birth control on the market. By tracking skin temperature on compatible Garmin smartwatches – including Fēnix 8, Forerunner 570, Forerunner 970, Venu 4 and Venu X1 – women can unlock fertility insights in the Natural Cyclesº app, helping them better understand their reproductive health.

“Women all over the world utilise Garmin products for activity and health tracking, which is why this integration with Natural Cyclesº, a pioneer in women’s digital health, is so important,” saidSusan Lyman,Garmin (www.garmin.com) vice president. “As we continue to help women meet their fitness and wellness goals, we are proudthat Garmin skin temperature canbe used within the Natural Cyclesº app for those looking for anon-hormonal approach to birth control.”

The Natural Cycles° app, an FDA class II medical device intended to prevent and plan pregnancy, analyses body temperature and other key fertility indicators to determine each user’s daily fertility status. With the launch of this integration, Natural Cyclesº users can now wear a compatible Garmin smartwatch to bed; skin temperature is tracked overnight and automatically syncs with the NC° app in the morning.

“For Natural Cyclesº, integrating with a hardware leader like Garmin is a natural next step as we expand our wearable ecosystem,” said Elina Berglund Scherwitzl, Natural Cyclesº (www.naturalcycles.com) CEO. “This product integrationmarks an exciting milestone, enabling us to bring our non-hormonal birth control to even more women worldwide and offering an effective, hormone-free way to prevent or plan pregnancy.”

The Garmin and Natural Cyclesº integration (www.naturalcycles.com/devices/garmin) is available in Australia, Brazil, Canada, European Union, Norway, Singapore, Switzerland, UK and USA.