WHOOP 4.0 Band and Device

WHOOP 4.0 hardware, Onyx SuperKnit band, and wearable, waterproof battery pack. Includes the charger and the cable too. The band is in Stone color. Perfect condition! Membership is not transferable unfortunately. WHOOP is a unique wearable fitness device that offers continuous monitoring of physiological data, including heart rate, respiratory rate, resting heart rate, heart rate variability, skin temperature, blood oxygen levels, daily activity and sleep so users can better understand their overall health and wellness status and track their progress over time.