Alright, I'm no expert, but I personally believe that the Tamagotchi there is a fake... My reasons are pretty simple though, it's not only the whole spot that says Tamagotcha, it's also the Famalitcha. I have heard the v5 called Familitchi and Famalitchi, but none with the "cha"
Also, the packaging. I'm not saying the shapes, I'm acually saying the color's themselves, for example: the little Memetchi is a very light orange, and not as vibrant as she usually is, as well as most of the colos on the cardboard seem very muted. The paint on the Tamagotchi itself is also very weird, I can't really say the speciic reason, but the colors lookwrong, if you know what I mean.
I've also, personally, not seen a Lanyard x Tama combo pack. But, that's just be, I'm pretty sure that real ones do exist, I just haven't seen them.
The Key is suspicious to me because I have seen a lot of v5 and none of them had the little key charm.
And if you look at the back of the box, the Adult Tama is weird and has four, long, tentacle limbs, something that I've never seen, as well as the fact that there is only one there instead of 3 for the Family.
These are the reason;s that I personally believe that the Tama is a fake, but as I said, I'm no expert. I hope that more people come in to help you and maybe ward people off of hese item.