What does E-book Reader mean?
An e-book reader is a portable electronic device for reading digital books and periodicals, better known as e-books. The e-book reader is normally designed to operate over long hours by consuming minimal power. Most e-book readers rely on the e-ink technology for their displays.
This term is also known as an e-book device and an e-reader.
Techopedia explains E-book Reader
If the definition is used loosely, then the term e-book reader can be used to refer to any device enabling the user to read e-books, including smartphones, PDAs, pocket PCs and tablet computers. However, the term is more often used to refer to a specific kind of device, which has a special display screen optimized for long hours of reading.
Most e-book readers use e-ink displays. E-ink displays closely mimic the appearance of paper on ink and are less strenuous to the eyes than most LCD or LED displays. They are also practically glare-free and allow the device to be used even under direct sunlight.