Everyone in the apple commercial is saying hello into a phone, ie the specific product genre. How'd you miss that?
I counted 31 phones in the apple commercial. What exactly makes a phone commercial about the "specific product genre" if not for phones??
How many smartphones did you count in the Apple commercial? Now how many wrist communicators in the Samsung commercial?
Show those two ads to someone, and stop just before the product / brand reveal.
1) I guarantee you that anyone watching the beginning of the Samsung ad can correctly guess that the product is wrist and phone related. The clips were specifically chosen for that connection.
2) Show the Apple ad and stop before the reveal, and no viewer would think that it was about a new smartphone. More likely, they might guess it was for a new phone service (mostly wired landline, considering the clips), or maybe a dating site since it emphasized "hello", or even about Turner Network Classics. The clips were not chosen to be about the product per se, but as an extension of Apple's old "hello" ads, with a phone related theme that only made sense once you saw the product.
That's the difference. Their similarity is only in the fact that they both used old clips.