His Apple Watch helped save his life. Mohammad Islam is lucky that his Apple Watch was able to call for help when he fell down. An Ohio man says his Apple Watch helped save his life by noticing a fall and calling emergency services for him. How Apple Watch fall detection worksIslam's story is a good example of how Apple's fall detection actually works in practice. The feature comes built into the Apple Watch SE and newer, Apple Watch Series 4 and up, and the Apple Watch Ultra.