In by extension terms the difference between iphone and iphone

is that iphone is any knockoff or similar high-end smartphone while iphone is any knockoff or similar high-end smartphone.

As nouns the difference between iphone and iphone

is that iphone is a smartphone of a series produced by Apple, which typically combine a camera phone, PDA, multimedia player, and wireless communication device while iPhone is a smartphone of a series produced by Apple, which typically combine a camera phone, PDA, multimedia player, and wireless communication device.