The real story. Sure, Apple unveiled three(!) new iPhones yesterday – the 5.8-in. iPhone Xs, the 6.5-inch iPhone Xs Max, and the 6.1-inch iPhone Xr (pronounced “10s,” “10s Max,” and “10r”) – but the real stunner was what may be the world’s first wearable EKG device: the Apple Watch Series 4. The app to support the heart rhythm measurement system isn’t live yet, but I’ve seen it working and it is interesting and very, very important.