The first wearable fitness and metabolic tracker using real-time breath calorimetry!

The companion app to the Calibre™ wearable breath/metabolic tracker allows you to view, record and analyze the rich biometric information obtained by the Calibre device. A device with groundbreaking accuracy for measuring and monitoring VO2 Max, Resting Metabolic Rate, FatMax, Calories and more with a lightweight, portable device that is simple and easy to use.

Disclaimer:
Calibre is intended for informational and educational purposes only and should not be used as a substitute for professional medical advice or devices.