Start by opening up the Fitbit iPhone app and tapping on the Today tab. This tab should have what looks like a little sun logo. Locate this icon and then tap on your profile picture and go to Fitbit ...

Tap the section and then the '+' icon in the top right corner of the menu. Log your information. The Fitbit app will then use your phone's GPS to track your run, walk or hike. Fitbit offers the choice ...