To compare Kindle eReader and Nook devices, we need to look at different aspects of both devices. We need to consider their design, the number of available books you can download and read, the overall user experience and the price.
Design and User Interface
The NOOK has a slightly larger size of 7.7 x 4.9 x 0.5 than the Kindle with its size of 7.5 x 4.8 x 0.3. This does not mean that the NOOK provides a better reading experience via its screen just because it is slightly bigger. Its larger size also makes it quite heavier than the Kindle. They weigh in at 11.6 and 8.5 ounces respectively. If weight is an issue for you, the Kindle is definitely the device that could give you a more comfortable reading experience.
The Kindle uses an E-Ink screen that minimizes stress on the eyes, battery usage and screen glares. If you like reading eBooks outside or in a well lit room, its lack of backlight will definitely appeal to you. The NOOK also has an E-Ink screen, but it is mixed with a touchscreen LCD. The NOOK's navigation area is touchscreen, providing readers with a sleek way of navigating their device while still providing the comfort and benefits of E-Ink technology.
With a selection of over 400,000 books, magazines and newspapers in Amazon's Kindle store, the Kindle can provide you with a really wide selection of material. However, that number is easily dwarfed by Barnes & Noble's Nook store which boasts over a million titles in their selection. These numbers increase by day and it may not matter much if you usually stick with more popular books that are highly likely to be available in digital format, but the size of the selection really adds weight to your decision of which device is better. It should also be noted that the Kindle does not support the EPUB standard format for eBooks, so that also factors into the selection consideration.
Both devices provide readers with a long battery life and a comfortable reading experience even with the slight difference in size and screen type. They also have basic web browsing capabilities via Wi-Fi connection, as well as a lending feature that lets readers share their books with their friends through their own devices using the devices' respective apps. The Kindle's lack of support for the EPUB format may throw some people off, especially those who love reading public domain books which make up most eBooks in EPUB format, but other than that, the two devices are pretty neck-and-neck in the user experience race.
In order to compare Kindle eReader and NOOK in terms of price, we just don't consider the actual price. We consider if the device itself justifies the price. The Kindle, at $139, justifies its price as a light and fast eReader that provides a solid reading experience. The NOOK similarly justifies its slightly higher price tag of $149 with its extra features including its touchscreen. As far as price goes, it's a tie between the two devices.
Kindle – https://www.amazon.com/Kindle-Wireless-Reader-Wifi-Graphite/dp/B002Y27P3M/
NOOK – https://www.barnesandnoble.com/nook/index.asp?PID=34323&cds2Pid=35700