Reviews that compare the Nook and the Kindle can be found at TrustedReviews.com, DigitalTrends.com and cnet.com, as of 2015. E-ink and tablet models were compared.
TrustedReviews.com compared the Kindle Paperwhite and the Nook Glowlight. Even though the Nook had some advantages, the Kindle Paperwhite was chosen as the better E-ink reader.
DigitalTrends.com compared the same E-ink models. The site found the Kindle Paperwhite to be superior in terms of hardware and software.
CNET compared E-ink and tablet models of Kindle, Nook, iPad and Android. CNET selected the best models in categories such as best bargain E-ink reader and best midsized tablet. The Kindle Paperwhite was chosen as the best overall E-ink reader.