This looks amazing to me: Rust stack for the smartwatch ESP32-S3-Touch-AMOLED-2.06.

I ordered the watch from Bangood here for about $40, which is a funny price for a watch of any kind. It came with a battery and an armband, even though I needed to install the battery and put the armband myself on a watch. The battery is very flat - looks like a fatter one would also fit into enclosure. I have not measured the battery life yet.

On my Ubuntu workstation, I succeeded in building the software stack, flashing Rust firmware, and getting the watch going without a single glitch. It even took my WiFi settings from the environment while building and used them to set itself the time via NTP.

Also, the code looks actually easy enough to read. This is something worth building a cult following around!

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