Basal Body Ring


The new era of cycle tracking. The BBRing and Cycle Tracker app – Accurate, precise and made exclusively by women for women. Ditch the guesswork and say hello to Femtek. 

Ring Size Guide


Introducing our Basal Body Ring: The Ultimate Women’s Wearable

Say goodbye to unreliable period tracking apps! The Basal Body Ring (BBRing) is here to revolutionize your cycle tracking experience. Designed by women, for women, this cutting-edge wearable offers a whole new way to understand and optimize your menstrual cycle.

Track Your Vital Metrics, While You Sleep

With the BBRing, you can effortlessly monitor your Basal Body Temperature, Heart Rate, and Heart Rate Variability while you sleep. Our advanced sensors capture accurate data throughout the night, providing you with invaluable insights into your body’s rhythms.

Seamless Integration with iOS and Android

Syncing seamlessly with both iOS and Android devices, our Femtek BBRing app empowers you to take control of your menstrual cycle like never before. Prepare to positively periodise your life with personalised plans and features tailored to your unique needs.

Unlock Your Full Potential Each Morning

Worn discreetly overnight, the BBRing syncs with our revolutionary BBRing Cycle Tracking app each morning. This powerful combination empowers you to fuel, train, and heal your body according to your cycle. Whether you’re trying to conceive, training with your cycle, tracking body literacy, or monitoring breastfeeding, the BBRing has got you covered.

Embrace the #FemHack Lifestyle

By understanding, working with, and optimising your cycle and ovulation schedule, you can unlock your true potential and embrace a life of greatness. Join the #FemHack movement and experience a new level of empowerment and well-being.

Accurate Data Collection with Advanced Technology

Our patent-pending temperature sensor configuration ensures your temperature readings are accurate to the nearest .01°C/F. The BBRing’s sensors collect up to 15,000 overnight measurements, filtering out disruptions like overnight feeds or bathroom breaks for unparalleled accuracy.

Beyond Cycle Tracking: Assess Your Overall Well-being

The BBRing’s heart rate and heart rate variability sensors go beyond just tracking your menstrual cycle. They assess your stress physiology and overall body health, offering a holistic approach to well-being.

Future-Proofed Technology

While the inbuilt SP02 feature is dormant in our first release, future updates will unlock this functionality. Rest assured, there’s no need to upgrade to the next version of the ring; simply update your app to access new features and enhancements.

What’s Included in Your Box:

  • Basal Body Ring
  • Basal Body Ring Charger Base and Cable

Experience the future of cycle tracking with the Basal Body Ring. Join the women who have already transformed their lives. Order now and take the first step towards a happier, healthier you.


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