Kyocera Echo
The Kyocera Echo (sometimes referred to as Sprint Echo) is a smartphone manufactured by Kyocera of Japan, and distributed by Sprint in the United States. It runs the Google Android operating system. It was announced by Sprint on 7 February 2011, and released for sale 17 April 2011. It is unusual in having two 3.5-inch screens that, when juxtaposed in "tablet mode" create one 4.7-inch screen. Sprint claims it as the "first dual-screen smart phone". When using the device, the screens can be used in four modes: