(Sorry korrektur, ich meinte natürlich diesen...: https://www.galaxus.ch/de/s2/product/philips-airfryer-xl-fritteuse-12904406)

There are three models of the Philips Essential XL (see also in the detailed descriptions):

HD9260/90: without keep warm function (the other product you mentioned).
HD9270/90: with keep-warm function (not available here)
HD9280/90: with keep warm function and Wifi Connected (this product)

The first two models only differ in one feature. The HD9260/90 model does not have a keep-warm function for food, whereas the HD9270/90 model does. This setting keeps food warm at the ideal temperature for up to 30 minutes after frying.

This product here with the model number HD9280/90 can be connected to the smartphone. A recipe can be selected in the app and then sent to the hot air fryer. The cooking progress can then be tracked via the smartphone.

Furthermore, this model is compatible with the Alexa speaker and thus voice control would also be possible.