Recently there are lots of smart phone brand news , let us know that they could make foldable screen like A. But I'm curious is it necessary to let a phone having function like a pad.(or is it necessary to let the phones screen get bigger)
In contrast to A, I think if any corporation produce B will be more interesting.
Imagine a phone that we use commonly could fold smaller, we could put it in our pocket or bag more space saving. On the other hand, if the phone like B have NFC function with block chain wallet, we could use the phone pay more efficient. Maybe consider some private demand, when we fold our phone, we could even hide the camera.
