Apple has so far been content to bring the feature to more countries through minor software updates, like watchOS 5.2 in March and 5.2.1 earlier in May.

The technology typically requires approval on a country-by-country basis due to the medical implications. It’s meant to detect atrial fibrillation, and officials typically want to ensure that it’s providing a sufficiently accurate reading. Apple and others have stressed that the Watch’s ECG app isn’t a substitute for a professional diagnosis with a multi-lead ECG — it just serves as an alert that could prompt a doctor’s visit.

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