The most affordable slate by Barnes & Noble has just received a refresh without jumping about the US$50 sweet spot. Its specs now include 16 GB of storage space, a "vivid and bright" 7-inch IPS display, as well as up to 7 hours of autonomy while reading, watching videos, and browsing the web.
https://www.notebookcheck.net/Barnes-Noble-is-back-with-the-US-49-99-7-inch-NOOK-Tablet.374041.0.html