From July 15 to July 16, these already cheap Chuwi devices will be even cheaper from $111 to $399 as part of Amazon Prime Day. Chuwi is notable for offering very inexpensive laptops and tablets that tend to work best as secondary or backup PCs.
https://www.notebookcheck.net/Chuwi-Black-Friday-Amazon-Prime-sale-knocks-25-percent-off-the-HeroBook-AeroBook-and-Hi9-Pro.427327.0.html