What do you mean? You mean like how Apple got fingerprint sensors, larger screens, NFC and smartwatches AFTER it's been already implemented by Android? Please go.
The fact is, if Samsung stayed plastic half of you would be critiscizing Samsung (Shamedung?) for not using quality materials. What gives?
1) Fingerprint sensors
Apple was the first to get it RIGHT. The first fingerprint sensors on Android were laughably unusable. They were mounted on the rear of the phone, required the user to swipe in a very specific direction which in turn required holding the phone in an awkward grip, and ultimately it was totally unreliable. In typical Samsung fashion, their original fingerprint sensors were added as an afterthought so they could list it as another feature on the box, regardless of how poorly it worked.
2) Larger Screen
A larger screen is no more of an innovation than a new color. I don't go around bragging that Apple innovated by coming up with "space grey" or "gold" -colored devices.
3) NFC
Apple doesn't jump on new tech without providing users with a compelling reason to use it. NFC payments in the US were rarely used until Apple released Apple Pay. They not only made it easy to use, but they secured deals with banks in advance, implemented an elaborate security system that makes it near impossible for someone to steal your credit card number, and they anonymized the transactions so that retailers couldn't track the user. Meanwhile, NFC payments on Android did little to increase security or privacy, and were awkward to use, requiring the user to give Google Wallet their credit card info. To make a payment, they required unlocking the phone, searching for and opening an app, compared to Apple Pay which works by just holding your locked phone next to the terminal.
4) Smartwatches
Do you really want to go there? The explosion in Android smartwatches was entirely the result of rumors that Apple was working on one. The first few days of Apple Watch pre-orders exceeded the combined sales to date of all Android smartwatches. The Apple Watch is the first such product that doesn't look like a computer strapped to your wrist. It's also small enough to look good on a woman's wrist, which means they've doubled Android's addressable market with that quality alone.
5) Quality Materials
Nobody is criticizing Samsung for using higher quality materials. They're being criticized for (once again) blatantly copying the iPhone instead of coming up with something original. It's also telling that Samsung started using better materials in a desperate last ditch attempt to compete with Apple, rather than because they care about quality or their customers.
Samsung's edge display is arguably new and innovative, but again in typical Samsung fashion they've failed (in my opinion) to present a compelling use case for it.