Looks interesting and is called the beepberry/beep. Looks like a rpi0 with a addon that has a paper screen + qwerty keyboard.
Some articles about it:
https://www.theverge.com/23727218/beepberry-cyberdeck-mini-computer-raspberry-pi-beeper-messenger
https://www.jeffgeerling.com/blog/2023/messing-beepy-formerly-known-beepberry
I held onto my Treo 650 for 5 years and it was hard to let it go. The keyboard and battery life were unbeatable, and it was near indestructible.
It took so long for modern smartphones to catch up to what I could do on the Treo.