It's been seen on other phones so head back to Apple to have them swap it out.
It's hard to see unless it's on a white background, but there's like an airbrush style bluish purple dot about 5 mm diameter on the middle of the screen down. It does get distracting because I know it's there. Does anyone else notice it?
This one tip will help you sleep better tonight
A few seconds are all you need to get a better night's rest.