For this special phone, some rumors reveal that it is built with high-end material–metal most likely. But from the leaked pictures, its back cover seems to be glass like what we see on Samsung Galaxy S6. Anyway. The design seems mind-blowing. And the most important thing is that it features two screens on both side of the flip. When you close the phone, the screen on the outside can serve as a panel for showing time, notifications, music and all kinds of shortcuts.
As a flip phone, it is equipped with physical keyboard. Last but not least, this flip phone also ships with Android OS, probably the latest Android 6.0 Marshmallow. It will be on market next month.