I made a small os for wearable devices on esp32. Git hub link in comments : r/esp32
ESP32 on Twitter: "Show-n-tell: @Enitalp posted photos of a [cancelled] ESP32 hardware project; it's neat to see the design iterations — watching the progression from breadboard prototype to a clean and compact
MutantW Is an ESP32-Powered Open Source Smartwatch - Hackster.io
Sensors | Free Full-Text | Modelling the Influence of Electromagnetic Field on the User of a Wearable IoT Device Used in a WSN for Monitoring and Reducing Hazards in the Work Environment