Fitbit Air and Classic Watches: Merging Technology and Style
Achieving the perfect balance of health tracking and timeless design.

Traditional Watches and Modern Tech on One Strap
Many users face a common dilemma: how to benefit from modern health monitoring features without sacrificing their favourite mechanical watch. The arrival of the Fitbit Air has solved this problem. As a device without a screen that relies entirely on sensors, it is the ideal candidate to be worn on the inside of the wrist, tucked beneath a classic timepiece.
How to Adapt Your Gear
The simplest method involves using an 18mm Performance Loop strap. The process is similar to attaching NATO-style straps: you remove the original watch strap while keeping the spring bars, then thread the Fitbit Air strap underneath the watch case. As a result, the watch face remains on top, while the tracker sits against the inside of your wrist.
If you prefer to keep your original watch strap, there is an alternative: 3D-printed adapters. These allow you to attach the tracker directly to your existing strap. This method has already been tested on models such as the Hamilton Khaki Field King, though it is crucial to ensure the adapter is securely fastened so you do not lose the device during exercise.

Important Considerations
While this solution is aesthetically appealing, there are some practical nuances. Firstly, Google recommends wearing the tracker on the top of the wrist for the most accurate data; it remains unclear how precise measurements will be from the inside of the wrist. Additionally, you may experience discomfort while typing or working at a computer, as the sensor positioned under the wrist will press against surfaces.
Also, pay attention to water resistance. The Fitbit Air is protected up to 50 metres, but your classic watch may not be prepared for moisture. If you exercise frequently, it is better to use the original strap, as 3D-printed adapters are less reliable under high strain.
Functionality and the App
Using the Fitbit Air still requires the Google Health app. The device monitors heart rate, sleep, and physical activity. Basic data is free, while a Google Health Premium subscription is required for more detailed analysis and personalized coaching services. This method is perfect for those who appreciate the design of a mechanical watch and do not want the distraction of a second screen on their wrist.