....Now, if Apple implement an always on display for the iPhone now that it supports OLED, then I could see them making the transition to the Apple Watch, and that something to keep watch for. (<—- Pun intended).
Pet peeve of mine. I use my iPhone as a desktop clock/alarm and use an app called OLEDX to display a clock. This means leaving unlocked and messes up my screen time and sleep time (in Health). No BIG deal but it would be nice to have the option for this. Even more relevant since it would have far less battery impact on the iPhone than on the Watch. Have ERed this but don't see happening until at least iOS 13 (Wonder if Apple will go with 13???).