Sleep: Tracks sleep stages and calculates your sleep need. * 💪 Strain: Measures your body's exertion during exercise and the day, from 0 to 21. * 🔋 Recovery: Gives you an indicator of your body's readiness for exercise. * ❤ Tracks indicators like heart rate, respiratory rate, and HRV according to the plan. * 🏋 Automatically recognizes many activities and exercises. * 🔔 It has a screenless vibration alarm. The current WHOOP 5.0 has a battery life of over 14 days, and you can charge it while wearing it using the wireless PowerPack. Features: Water Resistant