other manufacturers have had the same feature/capabilities for a long time
No they haven't, nobody had such a fingerprint reader in the phone, all others (specifically I know of only one at the moment, do write if you know more) are "slide you finger, not too fast, not too slow, don't press the side, oops not good enough, slide it again." Having used such readers, I know they are really annoying. Not the one on iPhone 5S. You press the finger not having to care about the angle and that's it. Compared to the slide ones that reject your whole slide because it was a little to the left or to the right and where only one slide direction is allowed and it takes exact time, iPhone's is pure magic.
"Having something" is not "we can write it on the spec sheet even if it's unusable."
No they haven't, nobody had such a fingerprint reader in the phone, all others (specifically I know of only one at the moment, do write if you know more) are "slide you finger, not too fast, not too slow, don't press the side, oops not good enough, slide it again." Having used such readers, I know they are really annoying. Not the one on iPhone 5S. You press the finger not having to care about the angle and that's it. Compared to the slide ones that reject your whole slide because it was a little to the left or to the right and where only one slide direction is allowed and it takes exact time, iPhone's is pure magic.
"Having something" is not "we can write it on the spec sheet even if it's unusable."