Oh boy, if this super-thin iPhone Fold rumor is true and it comes in at that magical 5.5-inch folded size, sign me up!

Model
Depth

iPhone 17
7.95mm

iPhone Air
5.64mm

iPhone 17 Pro
8.75mm

iPhone 17 Pro Max
8.75mm

iPhone Fold (unfolded)
4.5-4.8mm

iPhone Fold (folded)
9-9.5mm

Cutting around 20% off the size of the already-very-thin iPhone Air will be impressive.