Platforms
IOS, ANDROID
Free Tier
No
Paid Price
$30/month (includes device)
Sensors
1 supported
The Verdict
The gold standard for athletic HRV tracking with detailed analysis. The subscription model is polarizing, but serious athletes find the detailed recovery and strain insights useful for optimizing training.
Features
- 24/7 continuous HRV monitoring
- Strain and Recovery scores
- Sleep performance tracking
- SpO2 and skin temperature (Whoop 5.0)
- Journal for lifestyle factors
- Strain Coach for workouts
- Team and social features
Pros
- Most detailed HRV analytics
- Excellent athletic insights
- Real-time strain tracking
- Strong coaching recommendations
Cons
- Expensive monthly subscription
- No one-time purchase option
- Closed ecosystem
- No third-party sensor support
Recovery Score Explained
Whoop's Recovery score (0-100%) is calculated from HRV, resting heart rate, respiratory rate, and sleep performance. Green (67-100%) means you're primed for high strain; yellow (34-66%) suggests moderate activity; red (0-33%) indicates recovery mode.
Strain Tracking
Unlike passive trackers, Whoop actively monitors strain throughout your day and workouts. It uses HRV and heart rate to calculate cardiovascular load, helping you match your daily strain to your recovery level.