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There's an active F-91W watch hacking project (with somewhat different goals) here: https://www.crowdsupply.com/oddly-specific-objects/sensor-watch https://www

• deleted 4y ago
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• josecastillo 4y ago
  oh hey, this is my project! Sensor Watch definitely has different goals — less smart, more watch — but I love this, and I love how the F-91W represents such a blank canvas for folks to project their vision onto. It's small and so very thin (at home on any person's wrist), water-resistant and vaguely indestructible. It's also so inexpensive and ubiquitous that you can take it apart and hack on it without feeling like you're breaking something important, and you can safely assume that anyone in the world can probably grab one at a local store and hack along at home. It's a wonderful object.
• jcul 4y ago
  Wow this looks great, I will be following the project. It's a pity that shipping and taxes outside the US effectively doubles the price.