The science · Recovery
See how well you've recovered
Some mornings you’re ready to push, others your body is still catching up. Each morning, Bionny tells you how well you recovered overnight, compared with your own usual values.
What the band tracks
Why recovery is worth tracking
After effort, stress or a short night, your nervous system stays in “alert” mode for a while: your heart rate at rest goes up and your heart rate variability goes down. As you recover, both return to your usual values 1, 2.
That’s why coaches and athletes follow these two signals every morning. Bionny does the comparison for you, against your own last 30 nights rather than an average person’s, and calculates your score once, when your night is synced.
Recovery questions
Why is my recovery low after a good night?
Alcohol, a late meal, the start of an illness, stress or a hard day before can all lower it, even if you slept enough.
When is my score calculated?
Once your night is synced in the morning. It then stays the same for the day.
Do I need to wear the band at night to get a score?
Yes. Your Recovery score relies on heart rate variability and resting heart rate measured while you sleep. Without overnight data, you won’t receive a score. That’s normal.
Why don’t I have a score yet?
Bionny needs 4 nights to learn your usual values before giving you a score. Until you have 14 nights of data, your score displays a “Calibrating” badge. It’s already useful and becomes more precise as your baseline develops.
Sources
- Buchheit M (2014). Monitoring training status with HR measures: do all roads lead to Rome? Frontiers in Physiology.
- Shaffer F, Ginsberg JP (2017). An overview of heart rate variability metrics and norms. Frontiers in Public Health.
Bionny is a wellness device. It is not a medical device and is not intended to diagnose, treat, cure or prevent any disease.
What Bionny tracks
Blood pressure
Optical, cuff-free estimates throughout the day or on demand, so you can follow changes over time.
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Heart rate
Every 5 minutes day and night, live readings on demand, your resting trend and training zones.
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HRV
Small differences in the timing of heartbeats, tracked by your band and compared with your personal baseline.
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Stress
A daily stress score in three levels, along with your calmer moments.
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Activity and Strain
Steps, calories, daily goals, over 127 sports and your daily Strain score.
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Sleep
Light, deep, REM and awake time, a nightly Sleep Score, efficiency and regularity.
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Blood oxygen
SpO₂ readings day and night, summed up in a daily value.
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Bionny Age
An estimate based on your activity, resting heart rate and sleep, updated every two weeks.
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