A Rear Screen That Does More Than Look CoolThe leak shows a round porthole-style screen on the rear. UMIDIGI wants to change how people use their phones and improve interactions through the secondary rear display. With two screens, the UMIDIGI A100 offers new ways to interact, front and back. UMIDIGI A100 - Solid SpecificationsObviously, the UMIDIGI A100 will offer more than a secondary rear display. It blends solid hardware with a creative rear display that adds both fun and function.