You can add new functions to your smartwatch by installing apps from Galaxy Apps.
On your phone: Press Galaxy Wearable.
On your phone: Press INFO.
On your phone: Press VIEW MORE.
On your phone: Press the search field.
On your phone: Key in the name or subject of the required app and press the search icon.
On your phone: Press the required app.
On your phone: Press INSTALL and follow the instructions on the screen to install the app.