Hello,
a verry helpfull feature is an automatic call for help when an accident has happend and you are not able to call help by your self.
Usefull for cycling in special.
When you have a crash with bike and you are alone and you are knocked out, No one knows about your Situation and your Location.
An automatic call System would inform a person and send the current Location via sms (no internet needed) after a Countdown of 5 minutes. This person can call the ambulance for you. The current location in sms is a Link in Google Maps, so you can use directly the navigation the the location.
With the connected device, the Countdown could be stopped.
The App Road ID in Playstore recognize a crash and send SMS, nur it use a webservice and so Internet ist allways needed.
Best regards
Jens