You may be able to fit your mechanical watch onto the Fitbit Air's 18-mm band. It technically fits! But there are some problems with the setup.

The Fitbit Air doesn’t replace your analog or digital watch, and that’s one of the biggest reasons it works. Naturally,...

You may be able to fit your mechanical watch onto the Fitbit Air's 18-mm band. It technically fits! But there are some problems with the setup.