Hold UP, select Activities & Apps, select an activity, select the activity settings, and select Satellites.

Off

Disables satellite systems for the activity.

Use Default

Enables the watch to use the default system setting for satellites (System Settings).

GPS Only

Enables the GPS satellite system.

All Systems

Enables multiple satellite systems. Using multiple satellite systems together offers increased performance in challenging environments and faster position acquisition than using GPS only.

UltraTrac

Records track points and sensor data less frequently. Enabling the UltraTrac feature increases battery life but decreases the quality of recorded activities. You should use the UltraTrac feature for activities that demand longer battery life and for which frequent sensor data updates are less important.