When it comes time to choose an e-book, the average buyer gets lost in a heap of descriptions and incomprehensible terms. In appearance, all such devices differ little from each other. But, it is worth understanding - how it becomes more difficult to understand what is more important for an e-book.
Book screen type
E-books have only two types of screen - LCD or E-Ink screen. Both types are divided into subgroups, but their essence does not change from this. E-Ink is electronic ink that is as close to a book as possible, and LCD is used everywhere in TVs and monitors. E-Ink does not have a negative effect on the eyes, unlike LCD.
Another plus of E-Ink is its minimal energy consumption. When the text is already formed, the reader will not consume energy at all, which will allow you to use the device for weeks or months without charging.
The E-Ink display also has a wider viewing angle - 180 degrees versus 160 LCDs. This is a slight advantage, but still an advantage.
On the other hand, E-Ink screens have some downsides. Fast response time of 50ms versus 2ms for LCD screens. This can create a feeling of a certain inhibition of the reader, but this is not critical. After all, apart from reading, the book is no longer good for anything.
Bottom line: E-Ink is the best choice for a reader in terms of functionality and eye health.
File formats
Most readers understand pdf format and that's enough, because most books can be found in this format. However,.doc and.docx.,. Djvu,.txt and.fb2 formats do not hurt either.
If you reduce everything to one, then you should look for a reader with pdf,.djvu and.fb2 formats, since they are the most popular on the web. The rest of the formats are not important and lead to an increase in the price of the device.
You should also always read reviews for page display. It is important that the pages display correctly with all hyphenation, otherwise the text will become unreadable.
Memory
When choosing a device, 2GB of memory is enough, which will fit a huge number of books. A large number and the ability to insert flash drives is an irrational and significant increase in price.
Size and weight
The size of the book should be compact enough to fit in a bag or jacket pocket, take with you on a trip and not be burdened by its size and weight. Therefore, you need to choose the average size of the reader. The main thing is the ease of reading and portability of the device.
The optimal size on the market today is 6 inches. And the resolution is 800 by 600 pixels. This will allow you to read comfortably without blurring, pixelating, and so on. With this choice, the weight will also be optimally small - 200 grams. You can go for a larger size - 10 inches, but why? Such a "shovel" will be difficult to carry with you.