I'm so glad you asked, FlDonna! The wi-fi feature allows this model to connect to the SmartThings app on your smart phone. In the SmartThings app, you can monitor the oven and cooktop, and even control certain settings, right from your phone. You can read more about how and when to use these features on page 38 of the user manual (https://bit.ly/2X61MHf). ^Jecca