This article explains how to manually sync your Fitbit with an Android phone or iPhone using the Fitbit app. While data is automatically synced to the Fitbit throughout the day, at some point you may want to perform a manual sync.

Syncing your Fitbit device with your iPhone or Android smartphone is the fastest and easiest way to send your latest fitness activity to your Fitbit account.

After you download the Fitbit Health and Fitness app and complete the initial setup on your smartphone, your Fitbit tracker will routinely sync with your smartphone throughout the day. You usually won't need to manually sync your data.

However, you can manually sync your Fitbit to your phone—say, to meet a Fitbit Challenge deadline—so you can add your activity before the challenge ends. Here’s how it works: