Similar product: M5Stack Paper [0], has a 4.7 e-paper display and is based on the ESP-32. M5Stack also sells on AliExpress and ship surprisingly fast there.
https://shop.m5stack.com/collections/m5-core/products/m5pape...
https://shop.m5stack.com/collections/m5-core/products/m5pape...
I think it's not possible to buy it anymore.
I've seen another supplier selling them, but like 30 or 40% more expensive, for more than 100$.