Auto unlock using wifi instead of gps

Tried to switch auto unlock from gps to wifi for saving battery life of my iOS device but the auto unlock feature gets disabled as soon as the gps is Switched off.

Can’t understand this behavior when gps is not used at all?

Thanx, Christian

Auto-Unlock always uses and needs GPS/Location services on your phone. This setting only changes the accuracy at which an exit is validated. It’s not recommended to change it unless the Nuki support tells you to do so.

Thank u Jürgen , the feature works perfect with recommended settings, it was just an idea to reduce battery consumption because wifi is always available on the property, also from the street.