Apple Releases watchOS 5.3 With Walkie-Talkie Bug Fix, ECG Support for Canada and Singapore
Apple today released watchOS 5.3, the seventh update to the watchOS 5 operating system that runs on modern Apple Watch models. watchOS 5.3 comes more than a month after the launch of watchOS 5.2.1, a minor update that expanded ECG availability.
watchOS 5.3 can be downloaded for free through the dedicated Apple Watch app on the iPhone by going to General -> Software Update. To install the new software, the Apple Watch needs to have at least 50 percent battery, it needs to be placed on a charger, and it needs to be in range of the iPhone.
No new features were discovered in watchOS 5.3 during the beta testing process, but according to Apple's iOS 12.4 release notes, the new update, along with iOS 12.4, fixes a major bug in the Walkie-Talkie app that could allow it to be used to spy on people and it once again makes the Walkie-Talkie app accessible.
The watchOS 5.3 update also brings ECG support and irregular heart rhythm notifications to Apple Watch Series 4 owners in both Canada and Singapore. The ECG feature's launch in Canada comes a few months after Apple confirmed that it was working to bring ECG functionality to the Apple Watch in Canada "as quickly as possible."
Health Canada initially approved the ECG app and irregular heart rhythm notifications on Apple Watch Series 4 in May. ECG capabilities are now available in more than 25 countries, following the feature's rollout to many European countries earlier this year. A list of countries where ECG functionality is available can be found on Apple's Apple Watch feature availability website.
Apple's full 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
watchOS 5.3 may be one of the final updates to the watchOS 5 operating system as Apple shifts its focus to watchOS 6, which is currently being beta tested ahead of a planned fall release.
Popular Stories
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the "ultra-thin" device.
Overall, the "iPhone 17 Air" is shaping up to be a mixed bag. Due to its thinness, the device is expected to have some limited specifications compared to the iPhone 17 Pro models, including only a single rear camera, only a single speaker, no SIM...
Apple today adjusted estimated trade-in values for select iPhone, iPad, Mac, and Apple Watch models in the U.S., according to its website.
Some values increased, while others decreased. The changes were not too significant, with most values rising or dropping by $5 to $50.
We have outlined some examples below:
Device
New Value
Old Value
iPhone 15 Pro Max
Up to $630
U ...
Apple provided the third beta of iOS 18.3 to developers today, and while the betas have so far been light on new features, the third beta makes some major changes to Notification Summaries and also tweaks a few other features.
Notification Summary Changes
Apple made multiple changes to Notification Summaries in response to complaints about inaccurate summaries of news headlines.
For...
Apple today released new firmware designed for the 25W MagSafe Charger that is compatible with the iPhone 12 and later and the latest AirPods and Apple Watch models. The updated firmware is version 2A143, up from the 2A138 firmware that the accessory shipped with. In the Settings app, you'll see a different version number than the internal firmware number.
The 2024 MagSafe charger was...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
iPhone 17 Pro concept based on rumors
Below, we recap key changes rumored for the iPhone 17 Pro models as of January 2025:
More aluminum: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models ...
There is a good chance that Apple's first product announcement of 2025 will be updated 13-inch and 15-inch MacBook Air models with the M4 chip.
Last month, Apple released macOS Sequoia 15.2, and in doing so it accidentally confirmed new MacBook Air models are coming this year (unsurprisingly).
Bloomberg's Mark Gurman said the new MacBook Air models will be announced "earlier" than some...
Apple is in talks with Barclays and Synchrony about becoming its new financial partner for the Apple Card, according to Reuters sources.
The report today added that Apple has also been holding discussions with Chase Bank owner JPMorgan since last year, so there are at least three potential companies in the running to take over the Apple Card from current partner Goldman Sachs.
Goldman...
iOS 18.3 is currently in beta for developers and public beta testers. So far, the upcoming iPhone software update is very minor in scope.
Below, we outline what is new in iOS 18.3 so far.
The only potential new feature coming to iPhones with iOS 18.3 so far is robot vacuum support in the Home app, but this functionality is not yet live. Apple is laying the groundwork for the feature,...
In September, Apple said that it would be launching Powerbeats Pro 2 in 2025, and now further evidence of the wireless earbuds has surfaced.
Powerbeats Pro 2 images found in iOS 18 code
Apple submitted Powerbeats Pro 2 regulatory documents to the U.S. Federal Communications Commission (FCC) in mid-December. The documents were made available to the public this week, and they were spotted by 91M...
