My Apple Watch did not detect a hard fall.
Failure at fall detection
Apple Watch
Question marked as
Hello:) Check this and if that is correct then go back through excellent article you came from:
Make sure that your correct age appears in your Medical ID and your Health Profile. Fall Detection is available only for those 18 or older. Apple Watch cannot detect all falls. The more physically active you are, the more likely you are to trigger fall detection due to high-impact activity that can appear to be a fall.
~Katana-San~