Apple Watch can detect abnormal heart rhythms with a 97% accuracy rate

One of the more interesting aspects of the Apple Watch is that the marketing narrative around it has completely changed. When it first launched, the Apple Watch was positioned as something of a stylish fashion accessory that let users engage in lightweight tasks such as quickly checking notifications. Before long, though, it became clear that the device's main allure was its array of health and fitness features. Beyond the Apple Watch's standard suite of fitness oriented features, there have bee...