How to recognize whether the phone is fake or not?

Halo guys. I'm a newbie here. I wanna ask you guys about my phone. So couple days ago i just bought a phone from an e-commerce. It is samsung galaxy s7 edge T-mobile version SM-G935T. When i checked the imei, it said that the imei is real and matched with the phone. But i didnt just stop right there. I also tried to check my phone with antutu officer app. This app said that my phone is a high copy phone. I was surprised at that time. The question is, does my phone is the real or the fake...

How to recognize whether the phone is fake or not?

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