How WHOOP works

Guidance that keeps you moving forward

The WHOOP device and app work together to turn your data into clear, personalized coaching. Get daily guidance to make informed decisions, build healthier habits, and improve your long-term health.

Wear it 24/7

WHOOP is always on—whether it’s on your wrist, worn with WHOOP Body, or charging—so you never miss a second of data.

Measure & monitor everything

WHOOP measures the metrics that have the biggest impact on your health across sleep, strain, stress, recovery, and more.

Receive guidance

WHOOP delivers recommendations that translate your body’s data into clear guidance, helping you adjust habits and behaviors to improve your performance and health.

Make changes

Every choice adds up—WHOOP helps you create habit changes that lead to better health and peak performance.

From metrics to meaningful insights

SLEEPSTRAINRECOVERYSTRESSBEHAVIORSHEALTH

Optimize sleep

01 Track your sleep stages

WHOOP tracks all four stages of sleep — slow wave sleep (SWS), REM, light, and awake — with near-perfect accuracy. Each stage serves a different purpose in your recovery.

02 Understand your sleep need

WHOOP calculates how much sleep you really need based on recent sleep patterns, the strain from the day, sleep debt you’ve accrued, and any recent naps you’ve taken.

03 Optimize your sleep performance

Quality of sleep is just as important as quantity. WHOOP monitors your wake events, efficiency, and respiratory rate to deliver daily recommendations on how to get your best sleep every night.

04 Build your optimal sleep schedule

WHOOP helps you schedule your bed and wake times based on how strenuous your day was, when you need to wake up, and how you’re looking to perform the next day. You can also set custom haptic alarms that will wake you when you’re fully rested, or at a specific time.

05 View your sleep trends

See your sleep performance over the week, month, or year to identify patterns and build a better bedtime routine.

Extend your performance for years to come

Healthspan analyzes nine key metrics to calculate your WHOOP Age and assess whether your body is aging faster or slower than your biological age. Backed by longevity research, Healthspan highlights daily actions that affect your long term health most — and shows you exactly where to improve.

Understand your unique body and cycle

Understand hormonal changes

Track your cycle, log symptoms, and discover how hormonal shifts affect your sleep, recovery, and training.

Support your body through pregnancy

Stay in tune with your body during pregnancy with personalized guidance and weekly insights to optimize your sleep, hydration, and more.

Stay aligned with your body

Start your day with real-time insights on your cycle phase, so you can align your day with your body’s needs.

Get Daily Blood Pressure Insights

Patent-pending technology collects thousands of biometric data points overnight to provide you with automatic estimated systolic and diastolic ranges. Learn how your blood pressure affects your well-being and performance⁴.

Stay connected to your heart health

01 Take on-demand ECGs

Get a snapshot of your heart’s electrical activity and detect potential signs of AFib. To start an ECG reading² use the WHOOP app, then place your thumb and index finger on the sides of your clasp.

02 Share your heart health data

Share ECG results with your healthcare provider with a tap, empowering informed discussions about your heart health.

03 Stay informed

Use ECG readings to establish your baseline and stay informed about potential issues with valuable insights that support early intervention.

What to expect in the first 30 days

Your WHOOP calibrates to you—because no two bodies are the same. It analyzes your data, builds a personal baseline, and delivers insights tailored to your physiology.

Day 1 Day 14 Day 21 Day 30+

Establish your baseline

From the moment you put on WHOOP, it begins measuring key health metrics like sleep, strain, recovery, and heart health. Right away, you'll see insights on your heart rate, respiratory rate, steps, and stress.

Additional Medical Information:

1. Healthspan: This feature is not available for users under the age of 18. This feature is for wellness purposes only and not for medical use.

2. ECG: This feature is not intended for users with known arrhythmias other than AFib or users under 22 years old. It is not recommended for users with a cardiac pacemaker, ICDs or other implanted electronic devices. ECG is a medically regulated feature and is not available in every region. Find out where else it's available here.

3. Irregular Heart Rhythm Notifications (IHRN): This feature is not intended for users with known atrial fibrillation or users under 22 years old. IHRN is a medically regulated feature and is not currently available in every region. Find out where else it's available here.

4. Blood Pressure Insights: Blood Pressure Insights is not a medical device and cannot diagnose or manage medical conditions. It does not provide medical advice. Always consult your doctor for health concerns and never delay or modify medical care based on its information. Blood Pressure Insights is not intended for use if you are pregnant or on blood pressure medication.

5. Women's Hormonal Insights: Menstrual Cycle Insights is not a medical device or medical advice and should not be used for conception or contraception. All phases, including the ovulatory phase, are estimates.

6. WHOOP Advanced Labs: WHOOP Advanced Labs is only available in the United States and requires an active WHOOP membership or trial. You must be 18 years or older and not pregnant to participate. Advanced Labs testing is not available in Arizona, Hawaii, Wyoming, North Dakota, or South Dakota; however, tests may be completed out of state. If you are within 20 weeks postpartum, weigh under 100 lbs (45 kg), have severe anemia (Hb < 8 g/dL), or have recently undergone surgery, we recommend waiting until you have been cleared by your clinician before testing.