Because of the large portable Iphone6 difficult. Use a lot of energy, from which the above it makes use of high production costs and the customer in the marketplace also provides response 5 more than Iphone.
Because Iphone6 larger portable hard power, but which of the above, it makes use of high production costs and customers in order to provide feedback Iphone5 over.
Because Iphone6 is large, portable hard, lots of energy, which makes use of the said very high production cost and customers in the market also to accept goods Iphone5 over.