watchOS 9's New Low Power Mode Could Help Older Apple Watches
Until watchOS 9, Low Power Mode on the Apple Watch turned the smartwatch into a dumb watch that only told the time. With watchOS 9 on an Apple Watch Series 4 or later, however, a new Low Power Mode reduces the watch’s capabilities while keeping it largely functional. It turns off the Always-On display, heart rate notifications, background heart rate and blood oxygen measurements, and the automatic start workout reminder. When your iPhone isn’t nearby, it disables Wi-Fi and cellular connections and incoming phone calls and notifications. Other features will...