The Series 4 is the first truly big update to the Apple Watch line. It changes everything: the display, size, the shape, the sensors, the processor, the speaker and microphones—you name it. It truly ...

watchOS 5.1.2 launched to the public this morning and finally activated the ECG feature on Apple Watch Series 4. For now, the ECG app can only be used in the US and US territories, but it gives ...