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macrumors bot
Original poster
Apr 12, 2001

Apple on Tuesday seeded the release candidate of an upcoming watchOS 7.4 update to developers for testing purposes, and in the process revealed that the Apple Watch ECG feature is coming to additional countries very soon.


Along with iOS 14.5 and iPadOS 14.5, the official public version of watchOS 7.4 is set to be released next week, and Apple Watch users who install it in Australia and Vietnam can expect the built-in ECG function to come online as a result, as per the release notes.

ECG is considered a medical diagnostic, and so it requires approval from regulators in each country where Apple wants to make it made available, a requirement that has slowed the rollout of features.

According to regulatory documents, the Australian government approved ECG functionality on the Apple Watch in early March, giving Apple the all-clear to launch the feature for Apple Watch users in the country.

The ECG app, which is now available in 63 countries for Apple Watch Series 4, 5, and 6, allows users to directly measure electrical heart activity by simply placing their finger on the Digital Crown for 30 seconds.

Alongside iOS 14.5, watchOS 7.4 additionally introduces a new "Unlock with Apple Watch" feature that lets an ‌iPhone‌ with Face ID use an unlocked and authenticated Apple Watch as a secondary authentication measure when you're wearing a mask, alleviating the need to enter a passcode to unlock the ‌iPhone‌.

For those who use Apple Fitness+, the watchOS 7.4 update combined with iOS 14.5 and iPadOS 14.5 enables AirPlay 2 for Apple Fitness+, so workouts can be streamed to an ‌AirPlay‌ 2-enabled TV or set-top box.

Article Link: Apple Watch ECG Feature Coming to Australia and Vietnam Next Week


macrumors newbie
Dec 20, 2020
I wonder...

Do Apple Watches sold in Australia have the crown on the other side?

How does the pulse measurement work if the blood circulation is counterclockwise?
  • Haha
Reactions: wbeasley


macrumors member
Aug 25, 2012
Gave it a test today for the first time ever. Been looking forward to it since I got my Apple Watch 4.
Turns out I should’ve researched more. Doesn’t work if your HR is below 50.
My resting is generally high 40’s at day and at night while sleeping drops into the mid 30’s.
Guess I’ll have to get a slight jog going before I test it again later.
Last edited:


macrumors 6502
Oct 12, 2008
Sydney, Australia
I also tested it yesterday and it’s all working, finally. I purchased a series 4 at launch for this feature and since then upgraded to a 6. What will I possibly write about now that they have finally realised this feature ??‍♂️


macrumors 65816
Nov 23, 2007
Australia usually one of the first for hardware... and painfully slow on this software approval.

Betting nothing more was ever tested by any government officials here - do some paperwork and pay the fee.
What usually happens. But hey it's been the same with vaccine as well...

The benefits have been shown where people have been alerted to seek proper medical checks.
Lives have been saved.
Even a false positive is worth checking out. We all know it is not the be all and end all.
Having this function available is going to be welcome news to many who have had heart attacks.
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