A wallet card is needed until a time when health care providers know to look for this icon on a smartphone. It lets health care providers know you have advance care documents & information stored on a smartphone.
There are two versions of the wallet card: one has the appropriate text for a smartphone user, “I carry my advance care documents and information on the smartphone.”
Another wallet card is for those you hold dear who don’t have a smartphone but you do and they state that! “My health care proxy is carrying my documents on his/her smartphone.”