As the name suggests this phone features several layers, one application for each layer. This 'Sandwich' phone has several applications for each layer which are aligned like in a book which can be rotated 360 degree to facilitate ease of use. This axis of rotation comprises of a battery and a headphone slot for multimedia applications. Battery used is a rechargeable battery far different from conventional batteries. So based on the need of the applications, the number of layers you sandwich phone have!
Designer: Yeongwoo kim