Sorry, but that's a total overshoot. I definitivly won't sit next to my pan, monitoring its temperature on my smartphone to find the "perfect" moment when to stir the chopped onions. I would, maybe, if I did some extremely temperature sensitive chemical experiment. But not in my kitchen.

And WFT: there are batteries in the handle? It's a joke, yes? A pan should be the perfect thing for energy harvesting, which would be at least to some extent innovative.