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Heart Rate Variability
The variation between your heartbeats, and what the research says it reveals about recovery.
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The ScienceWhy we built the HLTH Band the way we did
No screen, no subscription, no nightly charge. Every one of those is a decision with a reason behind it.
The ScienceReading your HRV scores: low, normal, good and excellent
The four bands are calibrated to your personal baseline, not to a population average. Here is what each one is telling you.
The ScienceHeart Rate Variability
The variation between your heartbeats, and what the research says it reveals about recovery.
Heart HealthResting Heart Rate
One of the most accessible and most studied markers of long-term heart health.
Heart HealthBlood Pressure
Why blood pressure, measured over time, tells the real story about your heart.
Sleep & RestSleep Better Every Night
Discover science-backed tips, healthy habits, and expert insights to help you wake up feeling refreshed.
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