Garmin Wearables Now Feature Natural Cycles Fertility Tracking
- Garmin announced a product integration with Natural Cycles on March 31, 2026, allowing users of select smartwatches to utilize skin temperature data for fertility insights.
- The integration allows women to track their reproductive health using a non-hormonal approach.
- The feature is available on a specific set of Garmin wearables.
Garmin announced a product integration with Natural Cycles on March 31, 2026, allowing users of select smartwatches to utilize skin temperature data for fertility insights. This partnership integrates Garmin hardware with the Natural Cycles app, which is the only FDA-cleared app for birth control currently on the market.
The integration allows women to track their reproductive health using a non-hormonal approach. By wearing a compatible Garmin device to bed, skin temperature is tracked overnight and automatically synced with the Natural Cycles app in the morning.
Compatible Hardware and Technical Implementation
The feature is available on a specific set of Garmin wearables. Compatible models include:
- fēnix 8
- Forerunner 570
- Forerunner 970
- Venu 4
- Venu X1
The Natural Cycles app functions as an FDA class II medical device designed for both preventing and planning pregnancy. It analyzes the skin temperature data provided by the Garmin wearables alongside other key fertility indicators to determine a user’s unique daily fertility status.
Clinical Application and Effectiveness
The Natural Cycles app provides customized daily insights across different life stages. For birth control, the app identifies fertile days to indicate when protection is necessary. It also offers support for those planning or following a pregnancy by identifying peak fertility and tracking fetal growth.
Additional applications of the technology include postpartum support to monitor the return of a cycle and recovery, as well as assistance during perimenopause to help users recognize symptoms and understand bodily changes.
According to data provided by Natural Cycles, the effectiveness of the birth control method is 98% when used as intended and 93% with typical use. The company positions this effectiveness rate in the same category as the contraceptive pill, while noting that the method has zero side effects.
Strategic Industry Context
This integration represents an expansion of the wearable ecosystem for Natural Cycles and a broadening of health metrics for Garmin. Susan Lyman, Garmin Vice President of Consumer Sales and Marketing, stated that the integration is important because women globally use Garmin products for activity and health tracking.
Susan Lyman, Garmin Vice President of Consumer Sales and Marketing
As we continue to help women meet their fitness and wellness goals, we are proud that Garmin skin temperature can be used within the Natural Cycles app for those looking for a non-hormonal approach to birth control.
By moving beyond standard fitness tracking, Garmin is expanding its role in the health technology sector, providing users with medical-grade insights through third-party integrations. The ability to automate the syncing of overnight temperature data removes the need for manual entry, streamlining the process for users seeking hormone-free reproductive health management.