At least four companies, including Hearst and News Corp (NYSE: NWS). have big-screen e-readers in the works in the U.S. But only two, Amazon.com (NSDQ: AMZN) and Plastic Logic, have provided specs on their devices. Here’s how Plastic Logic’s eReader and Amazon’s Kindle DX measure up:

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Bottom line: The eReader is lighter, thinner and has a touch screen, but the DX undoubtedly has the big-mo because of Kindle’s dominance with e-readers and its earlier release date.