They only has choice for the 3.5" if they are willing to accept old version of the product. Apple did not update the spec for 4 & 4S. And when iPhone 5S and 6 c

They only has choice for the 3.5" if they are willing to accept old version of the product. Apple did not update the spec for 4 & 4S. And when iPhone 5S and 6 comes out, I don't think Apple is still going to sell any 3.5" iPhone any more.