Reverse engineering the SMA-Q2 smartwatch to run open source firmware on it. It is a Chinese smartwatch featuring a color Memory LCD, heart rate sensor and a NRF52832 Bluetooth SoC to drive it all.
ESP32 handheld
Pocket sized ESP32 display board with 300µW Always On Display that features a transflective Sharp memory LCD.
Smart watch from scratch
A smart watch from scratch from Samson March. The housing is made of woodfill PLA (70% plastic and 30% saw dust).