MutantW V1 - An open-source ESP32 smartwatch designed with Autodesk Fusion 360 and EAGLE - CNX Software
How to connect and set up Canyon "Wildberry" SW-74 Smart Watch - Canyon
China Smart Watch with NFC Used for Entrance Control System Open Door Subway Card Bus Card VIP Card Time Card Electronic Business Card - China NFC and NFC Watch price
File:DZ09 smartwatch with home screen open.jpg - Wikimedia Commons
LILYGO® & pauls_3d_things Open-Smartwatch T-micro32 ESP32 WIFI/Bluetooth for arduino(1)(1)(1)(1) - T-WATCH Series - Shenzhen Xin Yuan Electronic Technology Co., Ltd
Hack together your own e-paper smartwatch with this $50 open-source kit - The Verge