microcontrollers
M5Stack StopWatch Dev Kit Crams ESP32-S3 Into a Smart Pocket Watch
M5Stack's $45 StopWatch Dev Kit squeezes an ESP32-S3R8, AMOLED touchscreen, 6-axis IMU, RTC, mic and speaker into a pocketwatch-sized maker board.
esp32 & esp8266
M5Stack PaperColor Brings a Color E Ink Screen to ESP32-S3
M5Stack's PaperColor packs a 4-inch color E Ink Spectra 6 panel, ESP32-S3, microphone, speaker, RTC, and environmental sensors into one $75 dev kit.