The Kyocera Echo is currently the only dual-screen device on the market, but Engadget got its own preview of a cool dual-screen Android prototype by Imerj and Frog which is looking to challenge the Echo. The prototype features two 4-inch AMOLED attached by a simple hinge. The device spots a dual-core processor of a currently unknown speed,a 5 megapixel camera that functions as both a rear and front-facing camera, and 32 GB of onboard storage, which may be upgraded to 128 GB in a future model.
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