Help me figure out if this is a Robo OR Campbell

[Virtuousdelights518]

For my son’s 15th birthday I purchased him a hamster From Petsmart. It really was a impulse buy so I didn’t start doing my research till after I had a hamster. I realize the cage I purchase was way too small so I got a big bin cage. My son now wants to get a pair for it so I started doing my own research and realize although I was told I purchase a Robo there’s a huge chance that I got a Campbell Instead. I don’t want to Accidentally by two different breeds of hamsters and risking any of them getting injured.

I live four hours away from where I purchased this hamster we were on a road trip back home when we stop at Petsmart. Can anyone help me figure out what type of hamster I have I’m not sure if I can upload more than one picture at a time but I will post one here and if anyone needs more photos to help me figure it out