Users have found creative methods to pair classic analog wristwatches with Google’s screenless Fitbit Air fitness tracker. By attaching a traditional watch face to the top of the wrist strap while keeping the Fitbit sensor positioned underneath, wearers can track health metrics without wearing two devices or giving up their favorite mechanical timepieces.
How to Connect a Regular Watch to Fitbit Air
The simplest technique involves replacing an analog watch’s original strap with the 18-millimeter Performance Loop included with the $99.99 Fitbit Air. After removing the watch’s existing band, the Fitbit strap can be threaded beneath both spring bars in a NATO-style configuration. This keeps the classic watch visible on top of the wrist while the screenless sensor gathers heart rate, exercise, and sleep metrics underneath.
Users have successfully paired the setup with various designs, including watches from Seiko. The method works best with watches that have an 18-millimeter lug width, though 19-millimeter or 20-millimeter widths can also fit with minor gaps on the sides. However, watches narrower than 18 millimeters will not fit the stock strap, and sufficient clearance between the case and spring bars is necessary to thread the band.
Alternatively, some owners are using custom 3D-printed adapters to keep their original watch bands. As reported by Engadget, one content creator demonstrated this setup using a Hamilton Khaki Field King, securing the removable Fitbit sensor to the watch’s original strap via a printed mount.
Potential Drawbacks and Performance Considerations
While the dual setup offers a combination of analog style and modern health tracking, it comes with several practical trade-offs. Google recommends wearing the Fitbit Air on top of the wrist for maximum accuracy, and the company has not confirmed whether sensor readings remain as accurate when placed underneath. Placing the sensor beneath the wrist may also cause discomfort during extended periods of typing or resting hands on a desk.
Environmental exposure presents another challenge. Although the Fitbit Air carries a 50-meter water resistance rating, many traditional timepieces and leather bands cannot tolerate water or heavy sweat. Additionally, custom 3D-printed clips could loosen during intense physical activity, making the official Fitbit strap a safer choice for exercise.
Using the combined setup does not bypass Google’s software requirements. Owners still need a Google Account and the Google Health app to view their fitness metrics. While basic activity tracking remains free, access to personalized health coaching requires a Google Health Premium subscription priced at $9.99 per month or $99 annually.
