You need the code as well.

This address opens an advance directive, but only with the code from the item (ten characters, printed beside the square symbol):

wdocs.app/ABCDE-FGHJK

0 and 1 are digits, never the letters O or I. Capitals and the dash are optional.

Looking for your own account? Sign in at app.wearabledocs.com.

Saw this on somebody's wrist? wearabledocs.com explains what it is and how to set one up for yourself.