The Bookeen Cybook Opus has a 5 inch display that can used in both portrait and landscape orientations and includes the functionality to automatically detect when a switch is made by the user. The display screen also contains several customizable settings, including being able to be seen and read during daylight. The device is compatible with several formats, including Adobe ePUB/PDF, HTML, TXT, JPG, GIF, and PNG. The battery is both rechargeable and replaceable, and holds power for two weeks after one charge via an included USB cable.
