Special thanks to https://www.PCBWay.com for sponsoring this video. PCBWay provides fast and easy PCB prototyping, 3D printing, and CNC services. I made my own smartwatch from basic components, and created everything except the board and screen, including the case, additional hardware, and the operating system.
The main board used was the Lilygo TDisplay S3 AMOLED (https://www.lilygo.cc/products/tdisp..., and features an ESP32S3 SoC that provides built in WiFi, Bluetooth, I2C, and USBC interface.
The case was designed in Google Sketchup, and the operating system (mPOS) and applications were written in Python using the Micropython firmware, and the main AMOLED board driver was provided by nspsck on GitHub.
Driver link: https://github.com/nspsck/RM67162_Mic...

3D model of case, but you'll never use it since it's for this specific board: https://drive.google.com/file/d/1o5Bm...

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This video was sponsored by PCBWay