Mobile phones with additional external display

External display

— the presence of a second display in the phone design, in addition to the main one. The design and application features of such a display depend on a number of characteristics of the device itself. For example, in flip phones, an additional screen allows you to receive notifications about a received message, incoming call, etc., without opening the phone again and without wearing out the rotating mechanism. And in modern smartphones, the second display can be made using “electronic paper” technology; Using it for simple tasks like reading books or email can significantly save battery power. At the same time, flip phones are practically out of use today, and installing a second screen in a smartphone significantly complicates the design and increases its cost. Therefore, this feature is not particularly popular.