WHOOP is a wearable that tracks Sleep, Strain, Recovery, and health biometrics 24/7, providing you with personalized coaching based on your goals to help unlock your best performance. The WHOOP wearable is screenless — all of your data is brought into the WHOOP app — for a distraction-free focus on your health. The WHOOP app does require a WHOOP wearable. WHOOP does more than track your activity — it translates your data into clear next steps. WHOOP captures your biometrics 24/7 to calibrate specifically to your body’s unique physiology, then recommending everything from when to go to bed to what behaviors to adopt to help you reach your goals. Here's how it works: Sleep: Every night, WHOOP calculates your sleep performance by measuring the sleep you got compared to the sleep your body needs. You'll wake up to a sleep score from 0 to 100%. Sleep Coach lets you know when you should go to bed to optimize your performance the following day. Now, with the release of WHOOP 4.0, Sleep Coach can also wake you when you've set an exact time, once you've reached your sleep goal, or when you're fully recovered using a quiet, vibrating haptic alarm. Strain: WHOOP does more than just track your activity – it measures how much physical and mental stress you put on yourself throughout your entire day. WHOOP considers your exercise, work, errands, travel, and more to calculate a daily Strain score ranging from 0 to 21. Strain Coach then recommends your optimal target exertion range based on your Recovery score to help you maximize your gains without sacrificing your Recovery. Recovery: WHOOP lets you know how ready you are to perform by measuring your heart-rate variability, resting heart rate, sleep, and respiratory rate. You'll get a daily Recovery score on a scale of 0 to 100%. When you're in the green, you're ready for strain, when you're in the yellow or red, you may want to evaluate your training program. Behaviors: Track the impact of over 140 daily habits and behaviors, like alcohol intake, medication, stress, and more, to better understand how these various behaviors help or hurt you – and ultimately, make better lifestyle choices. What else you can do in the WHOOP app: • Dive into your weekly & monthly performance: Get a weekly and monthly Performance Assessment to spot trends or see how you’re making progress • Dig into the details: See a breakdown of your activities by heart rate zone, and even see trends across Sleep, Strain, and Recovery up to 6 months at a time to adjust your behaviors, training, plans and more • Join a team: Stay motivated and accountable by joining a team. Chat directly with your teammates in the app, or as a coach, see how your team's training is going • WHOOP Live: Overlay real-time Recovery, Sleep, Strain or heart-rate data onto your videos • Get help: Membership Services is available to answer your questions directly from the app WHOOP provides products and services designed for general fitness and wellness purposes. WHOOP products and services are not medical devices, not intended to treat or diagnose any disease, and should not be used as a substitute for professional medical advice, diagnosis or treatment. All content available through WHOOP products and services is for general informational purposes only.