What the Apple Watch ECG App Actually Does Apple’s wearable ecosystem has always emphasized fitness metrics, but the dedicated ECG (electrocardiogram) app pushes the Watch into the realm of clinical‑grade monitoring. Unlike the baseline heart‑rate sensor, which simply counts beats per minute, the ECG app captures the electrical waveform generated by each cardiac cycle. The result is a 30‑second tracing that reveals rhythm patterns, intervals, and potential arrhythmias such as atrial fibrillation (AFib). Key capabilities: - Electrical signal acquisition via the Watch’s built‑in electrod...
Read the full breakdown originally published at https://ltdeveloperblogs.github.io/posts/the-apple-watch-heart-rate-feature-you-probably-didnt-realize-existed/
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