Whoop 4.0 WS40 Fitness Tracker | latest ONYX
Wearable health & fitness coach. New in unopened boxMetrics Measured:Blood oxygen, Calories burned, Duration of exercise, Duration of sleep stages, Hours slept, Hydration, Respiration rate, Resting heart rate, Skin temperatureAnalyzes key metrics that indicate overall health. Provides you with a daily recovery score, Comes with a at no charge Onyx band and Battery Pack 4.0