As the official launch date for the Xiaomi Mi MIX 4 draws closer, there are more rumors regarding this device. As of now, we do not have a specific official launch date for this flagship. However, the speculations so far shows that this device will arrive in August. Earlier reports shows that this smartphone will use a curved under-screen camera design. However, a few days ago, there were reports that this smartphone will come with a straight screen. The latest report claoims that this device will use a curved display just like the previous rumors. So, which will it be? straight display or curved screen?