Android devices have had Always-On Displays for quite a while now. They used to be used exclusively for checking notifications, time and date. But now you can even have GIFs running, see your schedule for the day, and also change your songs, all of this without turning your screen on, or losing much battery.
Apple has been behind this feature for a long time. It wasn’t until last year that the Apple Watch Series 5 finally got an Always-On Display, and it was exclusive to this model due to hardware limitations.
Hopefully, that won’t be the case with the iPhone. An Always-On Display is not a good reason to buy a brand new iPhone. Instead, Apple should finally let us have this feature in the iOS 14 update.