The Apple Watch Series 4 will gain the much hyped ECG functionality when the next version of watchOS is released. The echocardiogram sensor was one of the most talked about features during the ...

The currently supported models are the Apple Watch Series 4, Series 5, Series 6, Series 7, Series 8, Series 9, Watch Ultra, ...

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Introduced with the Apple Watch Series 4, you can take an ECG using the built-in app ... Apple Watch data appears on the screen as an overlay, letting users keep track of their progress without ...

It doesn't have the bells and whistles of the Apple Watch Series 10 or the Apple Watch Ultra 2, as it lacks temperature sensing, ECG functionality ... Apple Watch Series 4, 5, and 6 models.