Health Canada has issued active licenses for the ECG app on the Apple Watch Series 4 after the US debate in December, as well as for the irregular heart rhythm alert feature.
iPhone in Canada reports:
According to Health Canada's website, two active licenses from Apple now show as approved: 102864 for the ECG app and 102866 for irregular rhythm alert. The "first issue date of the unit" for both functions is listed as Thursday, May 16, 2019, an approval date possibly timed to fly under the radar of the Victoria day long weekend.
The electrodes built into the Digital Crown and the back crystal of the latest Apple Watch Series 4 model allow you to take an ECG reading whenever you want, just placing a finger on the Digital Crown for 30 seconds. The function works with the Health application, where the waveform of the heart's electrical activity is stored, ready to be shared with your doctor.
The healthcare system analyzes your ECGs to indicate whether you have normal sinus rhythm or signs of atrial fibrillation, which is a serious form of irregular heartbeat.
In March, watchOS 5.2 software enabled support for both the ECG app and irregular heartbeat alert in Hong Kong and 19 European countries. A few weeks later, the smaller watchOS 5.2.1 led the ECG support and irregular heart failure marking features to Croatia, the Czech Republic, Iceland, Poland and Slovakia.
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The ECG app and irregular rhythm alerts require iPhone 5 or later iOS 12.2 +.
The WatchOS Feature Availability page lists all the regions where the ECG app is currently available, as well as the markets that support irregular heartbeat alerts.