

Traeger makes pellet smokers. They have a hopper full of wood pellets and a micro controller that feeds in pellets to maintain a set temperature. You can get ones with a temperature probe to stick in the meat and let you know when it’s done, which is what the Wi-Fi is for.
There’s a legit use case for them because they save a ton of time and effort over smoking the traditional way.
To get the temperature probe data on your phone so that you don’t have to repeatedly get up to check it. It’s particularly useful for turkey, where the difference between moist and horribly dry white meat is only 5-10 degrees.