When the Apple Watch Series 4 shipped a few months ago, its electrocardiogram feature was still in the works. Not anymore. Apple just released its watchOS 5.1.2 update, which adds the highly anticipated ECG app.
When the Apple Watch Series 4 shipped a few months ago, its electrocardiogram feature was still in the works. Not anymore. Apple just released its watchOS 5.1.2 update, which adds the highly anticipated ECG app.