[Steko]

The correct solution is "always turn on wi-fi when I get home". The phone knows when this happens, you can set reminders around it.

[planb]

No, it does not if the Wifi Chipset is disabled, because it uses wifi for location services (GPS would use way too much battery). That's exactly the problem: The wifi chipset is used for much more than just connecting to the internet.

[mschuster91]

You can also use the GSM Cell ID for this purpose. Once the user marks his/her home, grab the IDs of the surrounding cell towers and use these as trigger.

[pgeorgi]

It's exactly what my phone does (Nexus 5X with Android 8), likely by listening to wifi passively ("which SSIDs are around?")

[Sephiroth87]

That doesn't sound like a disabled chipset...