The iPhone 17 Air will not have a SIM card slot - it is too thin for this
The Information writes that the iPhone 17 Air prototypes are 5 to 6 millimeters thick - this may not be enough to find room for a SIM card slot.
It is reported that such a thin case will also require the removal of the second speaker so as not to reduce the battery capacity.
At the moment, the thinnest iPhone remains the iPhone 6 with a thickness of 6.9 mm. The thinnest iPad is the iPad Pro (M4) 13 "with a thickness of 5.1 mm.