How to tell if your R36S console is fake or not

I recently watched a short explaining a couple of aspects to look for in order to determine if your R36S is a fake or not. I think there are some inconsistencies in that video, that's why I wanted to share with you a couple of points to look for. Actually, it's not easy to determine if you have a fake or not, but if you buy it from a reputable store, you should have no problems.

1. The logo that appears when you start the game console is actually coming from the SD card, where the OS resides. You can install many OSes, but I recommend ArkOS4Clone. You can't really tell just by the logo itself if it's a fake or not...
2. The label on the back seems to be different by the manufacturer. Although reliable intel is scarce, R36S seems to be more of a specification which manufacturers follow. It's hard to tell just by looking at the back label if it's a fake or not...
3. A real device should have 2 SD card slots: one for the OS and another for game data. If your game console has only one, then it's most likely a fake one!

Do you have any other clues to spot the R36S fakes from real ones? I'm waiting for your comments in the video above or you can also contact me directly. Cheers!