Scroll down to the Updates section, then tap Update to the right of the Fitbit app if one is available. Sometimes your iPhone can’t find your Fitbit because you haven’t installed the most up-to-date version of the Fitbit app. To check for an app update, open the App Store and tap the Account icon in the upper right-hand corner of the screen. Reopen the Fitbit app and try pairing it to your iPhone again. If your iPhone doesn’t have a Home button, swipe up from the bottom to the center of the screen. Finally, swipe the Fitbit app up and off the top of the screen. Double-press the Home button, if your iPhone has one. The first step is to open the app switcher. Similar to resetting the Bluetooth connection, this will reset the Fitbit app and give it a fresh start.

Resetting your Bluetooth connection is one way to troubleshoot, but if this doesn’t work, try closing and reopening the Fitbit app. Wait a few seconds, then tap the switch a second time to turn Bluetooth on again.

Tap the switch at the top of the screen to turn off Bluetooth. This will reset the connection and hopefully allow your Fitbit to connect. If your iPhone still can’t find your Fitbit, try turning Bluetooth off and back on again. If it is, tap the information button (blue i inside of a circle), then tap Disconnect. In Settings -> Bluetooth, check to see if your iPhone is connect to any other devices. Connecting to multiple Bluetooth devices simultaneously can interfere with your iPhone’s ability to pair with your Fitbit. It’s also important make sure your iPhone isn’t connected to any other Bluetooth devices. Make sure the switch next to Bluetooth at the top of the screen is on. Bluetooth is the technology your iPhone uses to wirelessly connect to other devices. Open Settings and tap Bluetooth.

Fitbit for macbook pro