Koi x1
The most intuitive way to control your Apple Watch
with one handOne-handed Precision
Effortlessly rotate the Digital Crown without needing your second hand. Perfect for workouts, photography, and everyday multitasking.
- No screws. No tools. Instant setup.
- Custom fit for Apple Watch Ultra
- Enhanced grip, engineered for motion

A new gesture for a new era
Koi X1 introduces a more human way to interact with your smartwatch. Say goodbye to awkward angles or accidental touches.
Minimal. Mechanical. Magical.
Own it your way
Limited physical edition. Or print it yourself. Choose how you want to own the future.
- Numbered 3D prints for collectors
- STL files for makers worldwide
- Creative Commons license options

Support the Project
Join our Kickstarter campaign currently in progress. Get the STL file and physical product by supporting our project.
It's not a case. It's a concept.
Koi X1 redefines how we carry time. Designed for modular use, printed with precision, and optimized for the human hand, not just the wrist.
- Snap-fit, tool-free assembly
- Ready for custom straps or chains
- Open-source STL for the curious


Contact Us
We deeply value projects that inspire us to keep creating. If you're interested in collaborating with us/or would like us to collaborate with you feel free to reach out.