Watch face installation notes on smart watch:
Phone app serves only as a placeholder to make it easier to install & find the watch face on your Wear OS watch.
You have to select your watch device from the install dropdown menu from here.

If you download the helper directly with the phone , you need to open application and touch on the display. -> will start to install on the watch.
A wear os watch need to be connected.
Or you can follow the application hints to download to watch.

Features :
Battery friendly
Simple and cool design
Steps counter
Battery indicator
Date
Big Clock
AoD