Counterfeits look so much like the real thing, there are only a few details that are different.
The easiest way to tell:
For Samsung Note 4, Galaxy S5 Wallet, and Galaxy S5, there is a serial number on the back of the hard case. As of this post, no counterfeits have this serial number.
While that way is the best way to tell, there are other ways to see if your case is counterfeit. In the event counterfeiters start using the serial number, here are some other ways to tell:
The front of the packaging.
Notice the different color bar. The fake one has a dirty white, while the real one is pure white. If yours appears faded white, it is fake.
Also notice the yellow QR code. That is not suppose to be on the real case, so that is a sign the case is fake.
The design of the logo used to be different, but new counterfeit designs have it the same as the real one. However some fake ones still show a darker counterfeit logo:
There are two ways to check at the bottom for authenticity. However the bottom only works sometimes. I have a had a few fake cases that matched the font 100% and the barcode matched the real UPC.
But most fakes did not do that. If you think you have a fake one, enter the UPC code online and see what product it matches.
The real cases do not have bold font on the right side:
Ignore the other differences. Those are both on the real and fakes ones.
The back of the package is different too, however the fakes ones do match sometimes:
Now on the front of the case there is a difference. The real case has its font much more clear and further in the case:
Close up of the real one:
Notice the font on the fake one, it is not as clear:
If your OtterBox matches any of the counterfeit signs here, it is fake. Counterfeits will show at least one flaw.
Still not able to tell if your case is real or not? Leave a comment and I try to help you.
1.) Real OtterBoxs do not show flaws and counterfeits do.
I have had many brand new, non-counterfeited cases show major flaws to the design. I have also had many fake cases with perfect design.
2.) You can tell by how dark the Otter appears underneath the logo.
All new counterfeits that I have gotten in late 2014 and eary 2015 have fixed this. Now fake ones match the design perfectly.