I think the Air makes a lot more sense through the lens of a foldable iPhone.

Even for Apple, there are a significant amount of challenges in building a best-in-class foldable. Supply chain, manufacturing, hardware design, software. Apple is well known for planning ahead; breaking down problems by tackling some in an Air model first seems in line with how they operate.

The price difference really drives this home. It’s only $100 difference between a Pro and an Air. By the time you buy the perhaps-essential battery pack it’s the same price.

I don’t expect this model to continue more than a year or two, it’s a niche option only there to set the stage for a foldable that will take its place.