Recovery
88%
Optimal
Zefyr Vitality · the wellbeing app by Zefyr SA
Breathe
like the
wind.
Zefyr Vitality is the wellbeing app by Zefyr SA. One app, every Zefyr wearable. Available now with Zefyr Aura. Zefyr Breeze coming soon.
HRV
142 ms
RHR
48 bpm
Sleep
7h 45
Five pillars · one ring
Your wind, measured.
Recovery · today
88%
HRV trending up. Your body is ready to take on more.
Trend +4.2%
Breath
14.8 rpm
Skin temp
36.8 °C
SpO₂
98 %
Strain
14.2
Daily exertion score. Goes from 0 to 21.
Sleep
7h 45
4 stages. REM, deep, light, awake.
Insights
Weekly
Trends, correlations, gentle nudges.
ECG
60s
Single‑finger ECG with HRV report.
How it works
Three steps. No friction.
01
Slip on Zefyr Aura
The Zefyr Aura ring weighs less than 4 grams. You forget you're wearing it. It listens for 5–7 days on a single charge.
02
Sleep & live
No tapping, no buttons. Zefyr Aura captures heart rate, HRV, temperature, SpO₂, sleep stages, and movement passively.
03
Open Zefyr Vitality
Recovery, Strain, Sleep, and a gentle insight to start the day. That's it.
Coming soon
Be the first to breathe.
Join the Zefyr Vitality waitlist and get early access to Zefyr Aura + a 30‑day Vitality+ trial when we launch.