If you keep Wi-Fi activated, your phone can identify its position based on the Wi-Fi networks detected in your area. So it’s essential that you leave Wi-Fi on, even when you’re not connected to a Wi-Fi network. This way, your smartphone learns your frequent locations and notifies tado° when there is a location change.
When using Wi-Fi, you also reduce battery consumption, and support GPS systems to get accurate location detection. This is why iOS recommends that you keep Wi-Fi always on and sends notifications when you turn it off.
tado° Geofencing will recognise that you are at home when you connect to your home Wi-Fi network.