"Reading devices" refer to electronic devices or tools that are designed to display digital or electronic text, such as e-books, documents, or web pages, allowing users to read and access information in a digital format. Full definition
At present, however, compared to millions and millions of desktop and laptop computers, the number of dedicated eBook reading devices in use is extremely limited. (unlimitedpublishing.com)
This means they'll be readable by any device that supports a web browser instead of just a narrow group of reading devices supported by a particular online retailer. (activitypress.com)
What this means is that the tablet can also sum up as a nice e-book reading device as well. (goodereader.com)