The Sony Librie, released in 2004 and the precursor to the Sony Reader, was the first e-reader to use electronic paper. The absence of such apps may be perceived as an advantage, as the user may more easily focus on reading.

Drawbacks of this kind of display include a slow refresh rate and (usually) a grayscale-only display, which makes it unsuitable for sophisticated interactive applications as those found on tablets. This yields much longer battery life - the battery can last for several weeks - and better readability, similar to that of paper even in sunlight. It is similar in form factor to a tablet computer, but often features electronic paper rather than an LCD screen. Overview Īn e-reader is a device designed as a convenient way to read e-books. This is because an e-reader is capable of holding thousands of books while weighing less than one book, and the convenience provided due to add-on features. Their main advantage over printed books is portability. Īny device that can display text on a screen may act as an e-reader however, specialized e-reader devices may optimize portability, readability, and battery life for this purpose. Amazon's Kindle Keyboard e-reader displaying a page of an e-bookĪn e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading digital e-books and periodicals.

Tablets for reading