Google releases Fitbit Air blueprints for accessory makers

Google has released detailed design blueprints for its new Fitbit Air fitness tracker, inviting the public and third-party manufacturers to create custom bands and accessories. The company published technical specifications, 2D CAD drawings, and material guidelines online, a move aimed at fostering a broader accessory ecosystem for the screenless device.

The initiative opens accessory design to independent creators and companies. Google stated the community has already generated innovative ideas to personalize the Fitbit Air. The provided documentation includes the tracker’s exact measurements, attachment tolerances, and force specifications required for a secure fit. A key focus is ensuring health-tracking accuracy, with guidelines stressing that optical sensors on the device's bottom must remain unobstructed and maintain consistent skin contact.

Concurrently, a user-driven trend has emerged where owners are combining the Fitbit Air with traditional watches on a single strap. This method involves threading the watch through the tracker's band so the sensor sits on the underside of the wrist while the watch faces upward. The modification works because the Fitbit Air carries no...