Yes, I believe you can indeed do that. The mower will still work perfectly fine if you set it up at the house with WiFi and then move it to the garden without WiFi. The only limitation is that, without a WiFi connection in the garden, you won’t be able to monitor it remotely or make any changes through the app while it’s running.
So in short – it will mow as expected, but you’ll need to bring it back into WiFi range if you want to adjust settings or check in on it via the app.
Hope that helps, and best of luck getting it up and running!
Kind regards
Mark