This is the WHOOP 4.0: a smart wearable device that can monitor your heart rate, respiratory rate, resting heart rate, skin temperature, blood oxygen levels, and daily activity. It can be used track your diet, stress level, caffeine intake, and other data points. WHOOP can use this data to let you know how they are helping or hurting your recovery and sleep.
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The WHOOP app helps you better understand your body’s recovery and strain. It uses 5 LEDs and 4 photodiodes to capture your data. This gadget also has a sleep coach that uses haptic feedback to wake you up with vibrations.
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