asking about always on screen

It's not! Us, users asking to make it an option for over 4 years but not even comment from the team, which is bad. 90% of pictures on the web are with the display on, which looks wicked. So it's actually a bit misleading. Lots of people did not purchase watches because of this and lots of people returned them.  The empty display is just ugly.
Withings team, make it optional! State it will drain the battery faster and let the users decide!