watchOS 5.3 released with Walkie-Talkie bug fix & ECG support for Canada and Singapore

Apple has released watchOS 5.3 with a fix for Walkie-Talkie security bug and ECG and irregular heart rhythm notifications support for Canada and Singapore. The update is available for Apple Watch Series 1 and later, as an over-the-air update.

watchOS 5.3

Although Apple had not shared any release notes during watchOS 5.3 beta releases, the update has released with a few important ones. ECG app is now available for Apple Watch Series 4 users in Canada and Singapore. ECG app lets users takes electrocardiograms right from their wrist and take the results to a doctor for check ups. Irregular heart rhythm notifications, which are available on Apple Watch Series 1 and later, have also been made available to Canada and Singapore users.

Apple had recently disabled Walkie-Talkie app, which lets Apple Watch users send short voice messages to each other. Apple’s reason was that a security vulnerability has been discovered which could allow hackers to snoop into the voice messages. It seems that Apple fixed the issue with watchOS 5.3 and iOS 12.4 release.

To update your Apple Watch to watchOS 5.3, go to Watch app on your iPhone and head over to General > Software Update. Make sure that your Apple Watch has at least 50% battery charge and is placed on their charger.

Here are the complete release notes from Apple:

watchOS 5.3 release notes

This update includes new features, improvements and bug fixes and is recommended for all users.

  • Provides important security updates including a fix for the Walkie-Talkie app
  • ECG app on Apple Watch Series 4 now available in Canada and Singapore
  • Irregular heart rhythm notifications now available in Canada and Singapore

Apple has also released iOS 12.4, tvOS 12.4, macOS Mojave 10.14, iOS 9.3.6 and iOS 10.3.4 today.

Apple is also beta testing watchOS 6 at the moment which will ship with built-in App Store, new apps like Audiobooks, Calculator, Voice Memos, Animoji Stickers, Health and Activity updates and a number of new watch faces.