140+ biomarkers, medical-grade ECG and an AI that turns your biology into daily, actionable guidance. No subscription. Ever.
Take a medical-grade ECG in 40 seconds, anywhere. The Ring 2 continuously watches your rhythm and flags irregularities like AFib before they become emergencies.
Sleep stages, heart rate, SpO2 and breathing rate — captured silently while you rest, distilled into one score and a plan for tomorrow.
Auto-detected workouts, training zones and a daily energy score that tells you when to push — and when recovery is the real workout.
Your biology, decoded every morning. Kira cross-references 140+ biomarkers against your habits and hands you two or three moves that actually matter today.
Continuous skin-temperature trends catch deviations early — from oncoming illness to cycle shifts.
Blood-oxygen monitoring through the night.
The gold-standard stress & recovery signal, tracked 24/7.
Know when tension builds — before you feel it.
A silent vibration in your lightest sleep phase.
Temperature-based period & ovulation forecasting.
Weeks of insight per month of charging. Featherweight, waterproof, and invisible in your life.
“The best health device is the one you forget you’re wearing — until it tells you something that changes your day.”
The Circular PhilosophyECG, sleep, activity and 140+ biomarkers analyzed daily by Kira AI. No subscription, ever.
Get the Circular Ring 2