Fitbit devices must sync with their associated online Fitbit account in order to make data available through Fitabase.
The Fitbit Mobile App is available for iOS, Android, and Windows Phone
We recommend checking device compatibility in order to make sure your mobile device is able to support the Fitbit App and sync with Fitbit devices: https://www.fitbit.com/devices
The Fitbit App will communicate with the Fitbit device via Bluetooth Low Energy (BLE). It is important that the mobile device keep bluetooth turned on during data collection periods.
Tip:
You can also force a device to sync by opening the Mobile App, touching the device image at the top of the screen and pulling down to refresh and sync.
More information about device syncing can be found here: http://help.fitbit.com/articles/en_US/Help_article/1877/