This is a project that I've been working on and it's a pair of Raspberry Pi Zero W -based Smart Glasses. It has a single 240x240 IPS display [ST7789VW] that runs at 60 hz, a camera for doing hand tracking etc. (optional) and a 3d-printed frame to hold it together.
I was annoyed by the shear amount of Arduino smart glass clones on the internet and I needed a bit more powerful (and affordable) smart glasses so I created this project. All of the STL-files are free to download from Thingiverse, the demo programs are on GitHub and I've made a series about this project on YouTube for you to follow along if you want to build this / something similar.