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  • Calibre Biometric Tracker

    Calibre is a wearable biometric tracker analyzes your breath in real time, bringing you unprecedented insights into your performance, health, and wellness.

    Free shipping across the US

    Color
    Gray

    Try Calibre completely risk-free

    Use Calibre for a month, and if you don't like it, we will take it back, no questions asked!

    If you are in the US, free shipping is always an option!

    We're confident in our product. If anything happens or something isn't up to par, let us know and we'll make it right!