Question: how to connect my fitbit to my iphone bluetooth?
Answer: Force quit the Fitbit app. ...  On your phone, go to Settings > Bluetooth and turn Bluetooth off and back on. Open the Fitbit app. If your Fitbit device doesn't sync, restart it. ...  Open the Fitbit app. If your Fitbit device doesn't sync, restart your iPhone or iPad. ...  Open the Fitbit app.