Lilygo T-Deck Pro is a mobile dev kit with ePaper display, QWERTY keyboard, 4G (liliputing.com)
Last summer LILYGO launched a pocket-sized mobile communications device called the T-Deck Plus that looks like a phone, but is really more of a mobile dev kit with a 2.8 inch IPS LCD display, a BlackBerry keyboard, and support for WiFi, Bluetooth, and LoRa wireless connectivity… but no support for cellular networks.