Large white circle iPhone lock screen

Power off the phone and turn it back on it gets rid of the dot.

i have this same thing too!! Look! I posted a question about this like 5 times on my page and no one answered. @KiltedTim i have it too its weird.

Sorry? I don't see any large white circle in your screen shot above.

Have you tried changing the wallpaper? Looks like part of the image.