News: Apple releases watchOS 5.1.2 with ECG feature, restricted to U.S.-purchased devices only

Apple released watchOS 5.1.2 earlier today, providing the promised ECG app for the Apple Watch Series 4, along with new Infograph watch face complications for Apple’s stock apps, and a control center toggle for turning Walkie-Talkie on and off. Notably, however, it appears that Apple has taken additional measures beyond the usual regional software settings to restrict the new ECG app to only working on Apple Watch Series 4 units that were actually…