#1 If not, do it now.
Apple products are perfect examples of design and perfections and talking about the iPhone; it is an example of exquisitely fine and brilliant design. It is designed with a clean architecture and in an organized way which makes you feel like a king when you hold this product in your hand.
But, have you ever noticed those two lines on the back of iPhone 6? Did Apple put them just for the look or are they the part of any circuitry?