Well I never actually used it myself as I haven't crashed for years but I know it's there. Equally though I've never heard of this working from an Apple Watch before so I don't think my anecdotal opinion on that is worth raising.
I do know I use stuff like VO2Max estimation, FTP estimation, recovery estimation, power zones analysis and hill descriptions for climbing while on the bike and those features are not available on an Apple Watch to my knowledge. I know for sure that Apple doesn't support ANT+ and that's important for me.
An Apple Watch might be a good companion if you're a runner or a cycle commuter but it appears to be pretty limited if you want to use it for cycle sport.
I do know I use stuff like VO2Max estimation, FTP estimation, recovery estimation, power zones analysis and hill descriptions for climbing while on the bike and those features are not available on an Apple Watch to my knowledge. I know for sure that Apple doesn't support ANT+ and that's important for me.
An Apple Watch might be a good companion if you're a runner or a cycle commuter but it appears to be pretty limited if you want to use it for cycle sport.