Well, in the US, the Tamagotchi's are named Connections, in Australia they are Connexions. Not exactly sure what they are in Europe. But it doesnt really matter, they are exactly the same, just slightly different names.
Anyway, you know if it's an American Tamagotchi if the package says Tamagotchi ConneCTion, if it says ConneXion it's a European one. I used to think that if tamas said "Tamagotchi Connection" they were Connections and if they just said "Tamagotchi" they were Connexions. Pretty silly, don't you think?!
There is an asia Tamagotchi now in market too.. the different is in USA or Europe version de 'O' in Tamagotchi located above the screen is replace by a logo but in asia version, it is just the word TAMAGOTCHI connexion. i am not sure izzit a europe tamagotchi bu i am sure bandai release a tamagotchi in asia.