Other smartphones that launched this year include the eagerly anticipated iPhone 6, which came under criticism from users who claimed that the design bent in their pockets. Firefox’s logo is on the circular «home» button «to identify the originality through the front design of the body». The phone features 4G capabilities – one of the first for a Firefox operating system (OS) device – and a quad-core processor produced by Qualcomm. Related story: Tokujin Yoshioka launches mobile phone»In order to express the openness which is the most distinctive feature of Firefox OS, Tokujin captured the beauty of mechanicals inside and incorporated them to the design,» said a statement from the designer’s studio. News: Japanese designer Tokujin Yoshioka has created a see-through case for the latest Firefox smartphone from telecommunications company KDDI. The Fx0 by Tokujin Yoshioka is designed to show off the inner components of the au phone by KDDI, including the battery, sim card, electronic circuits and screws.