Andi wrote:On first view I can't see any differences
Did you move the arms all the way around? The mark is not visible at the angle they have in your picture. Also take off the head and see if the neck has printing on it.
Mine can certainly be recognized as a magnet, but I agree that there seems to be no difference in quality.
One interesting aspect that I had never noticed before: What is beneath Han's shirt? The magnet shows a flesh-coloured bare chest. The regular minifig appears to be tan (same as the arms), as if Han were wearing a grubby T-shirt underneath.