Was there a big run of 4.7 inch eink screens recently? Lilygo has a similar set of products: 4.7" screen powered by ESP32 with different battery connectors, touch screen overlay, and a few case options (some of which are basically just repurposed phone bodies). Theirs comes out to ~$50 if you get touch + a case
https://shop.m5stack.com/products/m5paper-esp32-development-...