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WatchOS 5.3 restores Walkie-Talkie and brings ECG support to Canada and Singapore

The latest point release to watchOS won’t mean much to most of you, unless you have a Series 4 and live in Canada or Singapore.
apple watch s4 ecg
Apple

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I have written professionally about technology for my entire adult professional life - over 20 years. I like to figure out how complicated technology works and explain it in a way anyone can understand.