Your faces live with your watch, so this page has to be opened from it. Typing the address on its own cannot tell which watch you are.
That is not a watch link. Copy the whole line from the watch app's settings.
The identifier alone works too. Either way it stays in this browser until you log out.
If that address has bought a face, a link is on its way. It connects the browser you open it in.
Your watch is connected, and has no face on it yet.
Forge your first faceFaces you buy stay here for good. Put a different one on whenever you like — the watch picks it up by itself in about a quarter of an hour.
Forge another faceKm run this year and this month, and metres climbed, as numbers, rings or bars toward a goal. FaceForge reads only your run totals from Strava, once an hour.
Free while it is new. You can disconnect here at any time; the totals are then gone from the face.
Add them to a face under Numbers; each has its own goal there.
Open this on the other device, or copy it across. It connects that browser to this watch.