Newton's Annoying Ring

[Sterillium]

I have an iPhone 6 plus, and I really like the ultra thin magnetic cases that click together into place like a steel bumper... the problem is, most of them only have glass on the back, meaning the screen is exposed to damage. This means I would also need a glass screen protector which I hate, firstly because I can never ever get them on without microscopic dust bits getting under it, and secondly, because I hate the way the look, creating a line around the perimeter of the screen, which ultimately will also gather dust etc.

I thought I had this solved, when I found the "front and back" magnetic metal cases like this:



However, I've bought two now, and both (although fitting great) immediately cause a million Newton's rings all over the screen.

So, I'm wondering, has anyone found a front and back magnetic case that is Newton ring free?

[cobra kid]

Firstly, let me research what a Newtons Ring is.

[Sterillium]

cobra kid said:

Firstly, let me research what a Newtons Ring is.

I confidently wrote it as if I had any clue whatsoever before having to Google it myself...