In all the flurry of phone-related frenzy, Apple showcased the latest version of the Apple Watch, Apple Watch Series 4, the fifth version of the smartwatch since 2015. It’s one of the few over-the-counter devices to offer ECG (electrocardiogram) readings and includes a feature that detects cardiac arrhythmias, such as atrial fibrillation, as well as a Siri-connected fall detection monitor.

To receive an ECG, users touch the Digital Crown (the bit on the side that you wind), and after 30 seconds, they will receive information on whether their heart is beating normally. Users can then see their heart’s reading and information in the Health app, which can be shared with physicians. Read More