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Polar H10 Heart-rate chest strap monitor
Equipment ~$90
The most accurate consumer chest strap (near ECG-grade), so you actually hold Zone 2 by heart rate instead of guessing. ANT+ and Bluetooth pair with any bike, treadmill, or watch.
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Educational only, not medical advice. Talk to a doctor about your individual circumstances before acting on this.
Called for in
- Endurance & VO2 Max · Andy Galpin
- HRV and Recovery Scores: What the Number Actually Means · YourProtocol
- Zone 2 Cardio: Train Your Engine · Inigo San Millan
- Zone 2 for Metabolic Health · Inigo San Millan
Experts who call for it
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Tiered options are coming soon. Today, every pick above is our single vetted recommendation.