Kindle (4th generation, 2011) still works perfectly fine, even after 11 years! : r/kindle
Amazon Kindle 4th Gen 4GB, Wi-Fi, D01100 **SCREEN IS IN MINT CONDITION** | eBay
Amazon.com: Fintie Slim Case for Kindle 5 & Kindle 4 - The Thinnest and Lightest PU Leather Cover with Magnet Closure (Only Fit Kindle with 6'' E Ink Display, Does Not Fit
Amazon Kindle (4th Gen) 4GB, Wi-Fi, D01100 *** VERY GOOD CONDITION *** | eBay
Amazon Kindle Touch 4th Gen 2GB 6" Silver Full Working Order | eBay
Amazon Kindle 4 - eReader Reviews by MobileTechReview
My 4th Gen Kindle : r/kindle
Amazon Kindle Touch (4th Generation) 4GB, Wi-Fi, 6in - Silver for sale online | eBay
Amazon Kindle 4th Gen Review - YouTube
Amazon Kindle Paperwhite 4 32GB Wi-Fi - Good e-Reader
Kindle Paperwhite 6" High Resolution Display E-Reader - AS-IS
Amazon.com: Kuesn Origami Stand Case for Kindle 4th Generation 2011 Silver & Black 2012 Release(Model:D01100) - Premium Leather Multi Angle Magnetic Folio Cover for Kindle4 K4 ebook Reader with Stand (MGJ) :