M5Stack has launched PaperMono, a compact ESP32-S3-powered E-Ink development terminal featuring a 3.97-inch grayscale touch display, integrated frontlight, and a built-in battery. Designed for low-power IoT applications, the device includes NFC and LoRa connectivity to support projects like digital badges, mini readers, and remote status screens. Both the fully featured PaperMono and a connectivity-stripped Lite version are available now through the M5Stack Store.