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Google has published physical drawings of its new Fitbit Air fitness tracker so that anyone, from independent designers and craftsmen to accessory manufacturers, can create their own straps and other compatible solutions for it. The company said that certified accessories will be able to receive the official Made for Google mark, which will confirm that the products meet the compatibility requirements and performance standards of the Fitbit Air.
Certified manufacturers will also be able to use the Made for Google logo to promote their products. According to Google, brands that join the certification program will have the opportunity to collaborate with the company and even participate in the preparation of accessories for future devices before their official launch.
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The published three-page PDF document contains detailed two-dimensional CAD drawings with the exact dimensions of the tracker capsule and the mount for the Performance Loop Band. The engineers determined the length of the main module at 33.5 mm and the width at 14.36 mm. The documentation indicates that the fixation force should be from 10 to 25 Newtons, while to detach the module, it is necessary to apply from 12 to 45 Newtons. This is necessary to securely hold the tracker during active movement.
9To5Google also found a page in the Google Store with technical requirements for accessories. Manufacturers are advised to use materials that are safe for the skin to minimize the risk of allergic reactions.
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The documentation emphasizes that the optical sensors and SpO2 sensor should remain fully exposed to ensure constant contact with the skin. Google recommends designing the straps in such a way that a stable pressure of at least 35 mmHg, or 0.68 psi, is maintained in the sensor area. This is necessary for accurate heart rate measurement during physical activity.
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Google officially introduced Fitbit Air last month, positioning it as a direct competitor to Whoop and Oura. The screenless tracker is available in four colors: Obsidian, Lavender, Berry, and Fog. The tech giant specifically decided to abandon the display to make the device smaller and lighter.
Fitbit Air supports heart rate monitoring, heart rhythm monitoring with atrial fibrillation (Afib) alerts, blood oxygen level measurement SpO2, and detailed sleep phase analysis. The special Stephen Curry Edition, which went on sale on May 26, additionally received water protection.
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