A phone which you can open Huawei has a new phone. Its name is Mate X2. The phone opens and closes like a book. The front display and inside have beautiful colours. The camera system is excellent. When the phone is open, you can watch two applications together. This phone is three times more expensive than a normal smartphone. It is also twice as heavy than a normal smartphone. Difficult words: display (a screen of a phone), application (a program in your phone = app).