Key Takeaways

AI can use smartwatch data to detect structural heart disease

Researchers trained the AI on more than 266,000 readings taken in hospitals

The AI was 88% accurate in detecting which of 600 people wearing a smartwatch had structural heart disease

TUESDAY, Nov. 4, 2025 (HealthDay News) — Artificial intelligence (AI) can use smartwatch data to detect heart disease, a new study says.

AI fed heart sensor data from an Apple Watch accurately detected heart problems like weakened pumping ability, damaged valves or thickened heart muscle, according to findings that will be presented Nov. 7 at the American Heart Association’s annual meeting in New Orleans.

This is impressive because an Apple Watch contains only a single echocardiogram (ECG) lead, compared to the 12-lead ECG tests

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