Auto switch.

[user9LSrU5eB7q]

Wearable app does not have auto switch feature.

[LongHiker]

@user9LSrU5eB7q It is available for me. 

1. Open the wearable app.
2. Click the icon which has 2 squares and 2 circles near the bottom middle of the screen. 
3. Click the 3 dot menu in upper right.
4. Click on Settings.
5. You will see Auto switch listed.
6. 

It seems that some people don't have this. I'm not sure if it is a regional thing or not. 

[tanjama68]

When I had a Watch 6 and Watch 7 that option was listed. When I replaced my 6 for another 7 it was no longer available.

[user9LSrU5eB7q]

I do now. Had to uninstall and reinstall.