A new Apple Watch and software with advanced heart-monitoring capabilities could boost the detection of abnormal heartbeats in millions of people, but it could also raise the chance of false positives, a cardiologist and researcher says. Apple unveiled three new iPhones, including two with bigger displays, but perhaps the more dramatic announcement from Cupertino, Calif., on Wednesday was its new Apple Watch, with the new health-related tools. The Apple Watch Series 4 will let users take an electrocardiogram, or ECG, and share it with their doctor. Apple said it's the first ECG product offered over the counter directly to consumers. Such heart data is important for some people because they could be at risk for a stroke. However, it could also increase...
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New Apple Watch To Detect Abnormal Heartbeats