The WHOOP Life Activity Tracker (WHOOP 4.0) is a screenless fitness and health monitoring device designed for continuous biometric tracking. It translates physiological data into Strain, Recovery, and Sleep scores to guide training readiness and recovery optimization without intrusive notifications.
Key Specifications
- Display: None (screenless design)
- Band Material: SuperKnit Fabric
- Durability: IP68 dustproof and water-resistant
- Tracked Metrics: Heart rate, HRV, resting heart rate, respiratory rate, blood oxygen (SpO2), skin temperature
- Scoring System: Strain, Recovery, and Sleep scores
- Sleep Tracking: Stages (Light, Deep, REM, Awake) with sleep debt calculation
- Charging: Wireless on-the-go charging, compatible with battery pack
- Design: Any-Wear compatibility for apparel transfers


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