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    Apple Watch ECG

    Medical-grade EKG on your wrist.

    What it does

    • 30-second EKG recording.
    • FDA-cleared.
    • Detects atrial fibrillation (AFib).
    • PDF for cardiologist.
    • Can save hospital trips.
    • Apple Watch Series 4 or later.

    Take an ECG

    • Open ECG app on Apple Watch.
    • Rest arm on table.
    • Touch + hold finger on Digital Crown.
    • Don't move 30 seconds.
    • Result appears: Sinus Rhythm / AFib / Inconclusive.
    • PDF auto-saved in iPhone Health app.

    When to take ECG

    • Heart racing / pounding feel.
    • Watch alerts irregular rhythm.
    • Skipping beats sensation.
    • Doctor asks for at-home recording.
    • Before exercise.
    • Track progress on heart medication.

    AFib alerts

    • Watch monitors background — no action needed.
    • If detects 5x irregular rhythms in row → notification.
    • Take ECG when alerted.
    • Show doctor.
    • AFib increases stroke risk 5x.
    • Caught early = saves lives.

    Send to doctor

    • Health app → ECG → tap recording.
    • Tap Share PDF → Email/Message to doctor.
    • Or print at appointment.
    • Some hospitals integrate via My Chart.
    • Doctor reviews like clinical EKG.
    • FDA-cleared = trustworthy.

    Limits

    • Single-lead vs 12-lead ER.
    • Detects AFib but not all heart issues.
    • Limited to certain rhythms.
    • Don't replace ER if chest pain.
    • Inconclusive = needs proper EKG.
    • Helps catch issues early.

    Other smartwatch ECG

    Samsung Galaxy Watch — ECG, only with Galaxy phone. Fitbit Sense 2 — ECG. Withings ScanWatch — beautiful + ECG. KardiaMobile — $90 device, ECG without watch. All FDA-cleared. AFib detection saves lives.