GPS and location

If you switch the button to the globe (GPS always enabled), the GPS will be enabled.

The GPS is turned on by default.

If you switch the button to the globe with an arrow (GPS enabled on motion), the GPS will only be enabled when the device is in motion. 

If you swipe it off by pressing the button, the device will turn off the GPS and instead calculate its position by triangulation.

The primary reason to disable the GPS in your device is to reduce power consumption. 

This is especially important when the device is situated in an area with poor GPS signal or no GPS signal at all for longer periods, since it will need to stay switched on for a longer time to provide a location.

It should, however, be noted that if the GPS is disabled for longer periods (> 2 weeks) the GPS will require long time (up to 15 minutes) and good signal conditions to download the almanac before it can give GPS positions.

Therefore, the conclusion is to only disable the GPS if GPS positions are not required (triangulated positions are still given) and/or if you want to maximize battery lifetime (up to 25% can be gained).

NOTE: When you disable GPS, you are still able to receive sensor data like temperature, shock, utilization, tilt, light and alarms. However, you will not get the precise location for where these events occured.

If the tracking device cannot obtain GPS, it will provide a triangulated position which still enables you to recover your device by using a radio scanner.