But the difference is - not everything the S4 does requires internet and/or data usage. So yes - you can get SIMILAR features for SOME things - but not all. Just like some here (not me) would argue that Siri is on the iPhone and there are other apps you can have on Android - but they will never be Siri.
Smartphones — all of them, pick any make or model — would be able to do almost nothing without data/internet.
I really don't get your point.
And yeah, Siri use data. So does Mail, Safari, App Store, Maps, Weather, YouTube, Stock, Podcasts etc. The Siri computation is done remotely, but who cares. Your Weather App doesn't figure out the weather itself, either.
Like I said, I really don't get your point.