Google has published the Fitbit Air’s technical specifications and CAD drawings, giving anyone with a 3D printer the measurements they need to design custom accessories for the $100 tracker.
The blueprints include the device’s exact dimensions alongside mating dimensions, tolerances, and mating force specifications required to build a properly fitting band. Google posted the announcement to Reddit’s r/fitbit community, saying: “We know that your personal style is entirely unique – and in just a few short days, this community has already come up with innovative and creative new ideas to make the Fitbit Air your own.”
The company didn’t just hand over raw measurements and call it a day. Google also flagged key functional requirements designers need to respect, including maintaining consistent skin contact with the tracker to keep its heart rate and SpO2 sensors working correctly. It’s also pushing material safety, listing restricted substances specifications that require copper and brass alloys to be lead-free and ban allergenic proteins in natural latex.
The move comes less than a month after Fitbit Air launched in early May. The screenless health and fitness tracker sells for $100, syncs with the Google Health app (formerly the Fitbit app), and uses a Gemini-powered Coach feature to deliver fitness data and workout suggestions. It’s positioned as a competitor to Whoop. Users had already started designing their own accessories, including 3D-printed armband adapters, before Google even released the official specs.
Source: engadget.com
