iPhone 8 will have a display with rounded borders but “less curved” of Samsung Galaxy S7 Edge; Now we also know what they mean exactly the rumors with this definition. In practice, while Samsung adopted a (complex and expensive) solution of 3D Glass, Cupertino will suffice 2.5D Glass, ie the same level of this curvature from iPhone 6 onwards. The confirmation comes from multiple sources believed to be reliable, Ming-Chi Kuo of KGI Securities and Chinese TrendForce.
The reason that you can not move bag and baggage to 3D Glass is that it is much more difficult to mass produce, and more is not as strong in the drop test. And if we consider that even now there are 8 different prototypes of the iPhone and still apparently were not finalized the specifications, it is not surprising that Apple wants to eliminate any element of further disturbance. In short, for the curved screen it will be necessary to wait a little ‘: and even then, there will be delays in deliveries and availability with the dropper in the early months.