From Xojo Documentation
Specifies the level of accuracy you need for the location data. Default is Accuracies.Best. Greater accuracy generally uses more battery power.
You should assign a value to this property that is appropriate for your usage scenario. For example, if you need the current location only within a kilometer, you should specify Accuracies.Kilometer and not Accuracies.BestForNavigation. Determining a location with greater accuracy requires more time and more power.