Want to pair your Fitbit Air fitness tracker with your favorite wristband? With this custom-designed 3D-printed adapter, you can easily attach the tracker to standard quick-release wristbands! This way, you’re no longer limited to the standard straps and can customize the look of your tracker anytime. You can see what the finished product looks like and just how snugly the wristband fits in the pictures.

I’m making the finished STL file for the adapter available as a paid download on Thangs. Support my work and give your Fitbit an upgrade!

Printing Information & Materials

Since the connecting pieces are delicate, printing them requires a bit of precision. However, with a well-calibrated printer, this isn't a problem at all.

  • Material: I have successfully printed and tested this design using both PETG and PLA. Both materials are excellent for this purpose.
  • Print settings: To best capture the fine details and curves, I strongly recommend using adaptive layer height in your slicer.