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Check responses set up required, compatibility and availability varies 18+.
Your heart can tell you a lot about your health.
Apple Watch Series 12 measures your heart rate every five seconds
with the most accurate heart rate sensing in a wearable.
So your vitals app, now with heart rate variability, can tell you when something is off.
And your readiness score can let you know when to rest and when to push.
Hear the story in every heartbeat with Apple Watch Series 12. The features
described are for wellness purposes only and not for medical use.
IPhone 11 or later required.
Based on Apple conducted study of heart rate accuracy,
August 2026. Visit apple.com slash Apple Watch Series 12. Happy Monday, listeners.
For Scientific American Science Quickly, I'm Rachel Feltman.