Profiles (Pro version) are a way of keeping all of the settings, customisations and speed and distance values together. You could have a Car profile for commuting, and when you go walking have a profile just for Walking. That way the values like average speed or distance travelled when in the car are not affected when walking.
Profiles are quick and easy to create, and switch between. Simply tap the car image:
You can create as many Profiles as you like, and you can copy an existing Profile to a new one using the ‘Copy’ text. Then, simply rename the new Profile.
Profiles can also be reset to the app default values.