This is a complicated issue since it goes beyond Apple launching a function for its smartwatch in all countries, it is about being able to use the electrocardiogram function and this depends largely on the health authorizations of the country itself. In the case of Spain for example, was released several months after its official staging which was precisely the moment the watch was launched in the United States.
Now the Apple Watch continues to activate the ECG function in countries that do not have it and in this case the license for Canada seems to be accepted by the regulatory bodies so soon its users will be able to enjoy this important function of the device.
Health Canada displays approved ECG licenses
The Health Canada website lists agency-approved licenses 102864 and 102866 to enable this feature in the country. In principle, if things are not twisted, it is possible that eight months after the official presentation of this function, it will finally arrive for Canadian users along with the important irregular heartbeat notifications.
Surely this final approval and the staging of the ECG functionality in Canada involves the launch of a new version of watchOS and possibly already the final version 5.3 although the official date of its activation is unknown. In any case, there are many countries that have this interesting function available beyond the United States and it will surely continue to be added over time and the "relevant approvals" from the health agencies of each of the countries that are missing to allow this function .