The Kindle Paperwhite brings a larger display, faster page turns, and new colors including metallic options for the Signature Edition. On the other hand, the entry-level Kindle hasn't changed much save for a brighter screen and a new color.https://www.notebookcheck.net/Amazon-announces-new-Kindle-Paperwhite-and-entry-level-Kindle.902610.0.html
Uhh you forgot the biggest announcement in the lineup... the Kindle Colorsoft! This is the first Amazon Kindle to ever have a color eink display!
What's the wifi version on new Paperwhite?
WiFi5 (802.11ac) or WiFi6 (802.11ax) ?
802.11ax with TWT (Target Wake Time) would be better for a device like ebook reader.