Both Kindle and Nook e-readers provide 4GB of storage capacity. Nook GlowLight Plus offers free online storage for eBooks purchased from Barnes & Noble, but this feature is not available for the Nook GlowLight. All Kindle models offer free online storage for Amazon content.
Barnes & Noble released the Nook GlowLight model in 2013. This Nook model has a 6-inch touchscreen with E-Ink Pearl display. The company released the latest model Nook GlowLight Plus in 2015. This model features a 6-inch high-resolution screen with 300-dpi.
Amazon offers three models of Kindle e-readers including Kindle, Kindle Paperwhite and Kindle Voyage. The basic version of Kindle has a 6-inch E-Ink Pearl display, while the Kindle Paperwhite and Kindle Voyage models have 6-inch high-resolution displays.