Could Amazon Kindle smartphone use E-Ink prototype?
Amazon.com: Kids Ebook Reader Portable E-Ink Electronic Ink 6 inch E-Reader with Blue Case Cover Headphones Support 29 Languages 800x600 Resolution Display 300DPI(Black,8G) : Electronics
How a Kindle's e-ink system works | The World from PRX
Amazon.com: Kindle Touch 3G, Free 3G + Wi-Fi, 6" E Ink Display - includes Special Offers & Sponsored Screensavers : Electronics
Amazon.com: Meebook P10 Pro E-Reader,2022 New 10" E-Ink Tablet Paperwhite Reader with Adjustable Front Light,Cold/Warm Light,Android 11,3GB Ram+64GB,Dual Touch, Support Hand Writing,WiFi OTG : Electronics