To be honest, I didn't realize that that sensor just about the size of an iPhone's sensor. I would have guessed the iPhone's camera sensor is smaller. It really blew my mind how compact the whole iPhone camera package is.

Flagship smartphones are cameras first, and phones second.

The iPhone camera module is among most expensive parts in the bill of materials, at about $37.60.

The Apple processor is about $30. NAND and RAM? $40 combined. TrueDepth? $17.

I'm not entirely sure about this situation, but sensor size numbers often don't reflect an actual measurement of the physical size of the sensor. It's all based on old film standards.

Fractional inches notation is based on imaging tubes, not films.

There were of cylindrical fluorescent vacuum tubes that has rectangular imaging area at one end. Inch size notation like 1” or 1/1.2” for CMOS sensors denote size of equivalent imaging tube diameter for its imaging area.

“135 full frame”, “APS-C”, “Super 35mm”, “Medium format” on the other hand refers to film sizes, and thus respective imaging area dimensions.

Maybe jimmies meant compared to webcams?