I did use CPU-Z and specifications are OK for almost everything but... I have 320 dpi (312 dpi in original specs) and 6GB instead of 8GB internal storage. That is big difference. I will post screen shots of CPU-Z.
In addition I can not pass verification on
http://order.mi.com/service/imei . Also there was no 20 code serial number on the scratch label which wess77 mentioned.
I hope that they aren't combining original and fake products. Just to earn some extra profit.