Wavy wrinkled effect at top of screen

I just got another silver s7 edge since I feel my first one had battery issues but I notice at the top of my phone under the glass where the foil is, it looks wavy all the way across. I only notice it on the top on the front.

Is this normal with all of them or is mine blemished??

I know this is probably should be a non issue but I want to make sure it's normal

Let's block ads! (Why?)

Wavy wrinkled effect at top of screen