The science
The science behind Bionny
Bionny tracks your heart rate and helps you follow your blood pressure trends, sleep, stress and activity. Lightweight and screen-free, the band syncs your data with your phone. Explore what each metric means, how the band measures it and the research behind it.
Made for everyday life
Bionny is made for everyday life, not just elite athletes. Wear it day and night, without a screen to distract you. Every feature is included, with no subscription.
- 288 readings a day (every 5 minutes)
- No subscription
- Up to30days battery
- 0 screens
Inside the band
What’s inside
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Optical sensor
Light from the sensor passes into the skin and picks up your pulse, the timing between heartbeats and your blood oxygen.
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Motion sensor
Counts your steps, measures your movement and tells how still you are at night.
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Onboard memory
The band keeps recording when your phone is away, and sends everything to the app at the next sync.
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Fit tip
Wear it snug, about one finger’s width above the wrist bone, towards the elbow. If the band moves around, the sensor loses contact and readings suffer.
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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Recovery
A morning overview of your recovery, based on overnight HRV, resting heart rate and sleep.
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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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Cycle
Log your period and see predictions, for wellness only, not contraception.
Getting started
Your first weeks with Bionny
Some features work from day one. Others need a few nights, as Bionny compares your results with your own usual values.
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Day 1
Wear it and pair it
Remove the thin protective film from the sensor, wear the band snugly, and pair it with the app. Heart rate, step, activity, and stress tracking start right away.
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First night
Your sleep
After at least 3 hours of sleep, you can see your sleep stages and Sleep Score. The band needs a few days to calibrate to your wrist.
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After 4 nights
First comparisons
Bionny starts comparing your nights with your usual values. You’ll see the first labels, differences from your baseline, and your first Recovery score.
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After 2 weeks
Recovery calibrated
After 14 nights, your Recovery score is fully calibrated.
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After 3 weeks
First Bionny Age
Your first Bionny Age estimate appears once you have 21 nights and 21 days of data within a 31-day period.
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After 30 days
Your baselines
Your usual resting heart rate and HRV are now based on 30 nights of data, the full period Bionny uses to compare your results with your usual values.
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After 90 days
Fully calibrated
Your Bionny Age is fully calibrated using three months of data about your habits.
See it for yourself
Every feature in one band. No monthly fees. Wellness insights that are easy to understand at a glance.
Bionny is a wellness device. It is not a medical device and is not intended to diagnose, treat, cure or prevent any disease.