whoop
KNOW
YOUR
BODY.
WHOOP 4.0 is the most intelligent fitness and recovery tracker ever built. No screen. No distractions. Just relentless, precise insight — 24/7.
Built Different.
For Those Who Train.
WHOOP 4.0 is not just a fitness tracker — it's a 24/7 performance coaching system on your wrist. Unlike smartwatches cluttered with notifications, WHOOP strips everything back to what matters: your body's data.
Every morning, WHOOP delivers a Recovery Score — a percentage that tells you how ready your body is to perform. Every night, it tracks your sleep with clinical-grade depth. Between those, it monitors strain, cardiovascular load, and stress in real time.
The result: you stop guessing and start knowing. When to push. When to pull back. When your body is operating at its peak — and when it's on the edge of breakdown.
"WHOOP collects significantly more data than competitors — five sensors gathering 100MB of data per user per day." — Time Magazine
Six Systems.
One Band.
WHOOP monitors the metrics that elite coaches and sports scientists have used for decades to manage athlete performance — now available on your wrist.
Each morning, WHOOP calculates your 0–100% recovery using HRV, resting heart rate, respiratory rate, and sleep performance. Know before you train.
Track every sleep stage — REM, deep, light — and get a personalized Sleep Need based on your recent training load. A haptic alarm wakes you at the perfect moment.
Cardiovascular strain is quantified on a 0–21 scale that reflects the real intensity of your exertion — not just duration, but effort, adapted to your own physiology.
Live view of heart rate, skin temperature, blood oxygen (SpO2), resting HR, HRV, and respiratory rate — all in one dashboard, exportable as a PDF for your physician.
WHOOP passively monitors physiological stress markers throughout the day, giving you a clear picture of how mental and emotional load affects your recovery.
Log and track gym workouts with exercise-level detail inside the WHOOP app — the smarter tool for lifters, CrossFitters, and anyone who trains with purpose.
Your Full Biometric Picture
33% Smaller.
Zero Compromise.
SuperKnit Band
Constructed from a premium knit weave that is pre-threaded and stays comfortable for 24-hour wear. Soft against the skin, durable in the gym, shower-proof in the field.
Fast Link™ Slider
A magnetic-assisted clasp system that makes band swaps effortless — and lets you lock in your preferred tightness once, forever. No tools. No fussing.
Any-Wear™ Technology
The device intelligently detects its location on your body and adjusts its algorithms accordingly — wrist, bicep, or embedded in WHOOP Body smart apparel. Your data, wherever you wear it.
Wearable Charging Pack
The waterproof battery module clips directly onto the band — so you charge while you wear. Never take it off. Never miss a data point.
Worn by
Champions.
From Olympic pools to Formula One pit lanes, from NBA courts to World Cup cricket pitches — the athletes who can't afford to guess wear WHOOP.
The Band Is Free.
Join WHOOP.
WHOOP operates on a membership model. Your device is included — no upfront hardware cost. Choose the plan that fits your commitment.
- WHOOP 4.0 device included
- Full app access
- Recovery, Strain & Sleep coaching
- Health Monitor dashboard
- Cancel anytime
- WHOOP 4.0 device included
- Full app access
- Recovery, Strain & Sleep coaching
- Health Monitor + PDF export
- Priority hardware upgrade access
- Save 40% vs monthly
- WHOOP 4.0 device included
- Full app access
- All coaching features
- Advanced Labs access
- Early feature releases
- Maximum savings
Answered.