Size of iPhone sims

[Robin4]

I was under the impression that all iPhone sims are the same size. Am I wrong?

I understand that iPads may be different, but I thought iPhone 2, 3, 3GS and 4 have the same size sim.

 

[forcetactic]

iPad and iPhone 4 both use microsims which are a bit smaller than the normal sims

 

[Robin4]

Thanks. That's what I was looking for.