After reading on these two e-readers, I find that while they have a lot in common, a few key features set the Kindle Paperwhite ahead.
Nook GlowLight 4 Plus Coming Soon! : r/nook
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Barnes and Noble Nook Glowlight 4 Plus Review: Waterproof E-Reader With Buttons
Upsie: Affordable, Reliable Warranties for All Your Devices
A 6 high-resolution 300-dpi screen with built-in glare- scratch- and fingerprint-resistant lens provides a paper-like reading experience. It’s powerful enough to read in bed or in the bright light of the sun. NOOK’s most advanced Ambient (Always-On) GlowLight technology lets you enjoy an evenly dispersed light.
Barnes & Noble Nook GlowLight 4 eReader | 6 Touchscreen | 32GB | Limited Edition Pearl Pink/White
Kindle Paperwhite vs Nook GlowLight
B&N's Nook GlowLight 4 Special edition : r/ereader
Switching Sides: My Transition from Nook to Kindle
Barnes & Noble's Nook GlowLight 4e is a cheaper option in its anti-Kindle lineup - The Verge
GlowLight 4 Plus impressions : r/nook