Im guessing the Japanese ones are in Japanese and not Eglish? Are they easy to use?
The recent model Japanese Tamagotchi is the EnTama and current model is the UraTama. Yes, all Japanese Tamagotchis are in Japanese, not English. They're not too hard to figure out though.
For EnTama, there are English-language guides here:
https://www.pixelmood.com/entama.htm
and here:
https://wa.ctk23.ne.jp/~rei-00/entama2.htm
and here:
https://www.tamatalk.com/IB/index.php?showtopic=46216
There is an EnTama character chart here:
https://i59.photobucket.com/albums/g310/bin...actersnamed.png
The Japanese versions of the TamaTown web site are also in Japanese.
There's an English-language guide for EnTama TamaTown here:
https://www.tamatalk.com/IB/index.php?showt...ndpost&p=573445
There are only a few differences between the EnTama and the UraTama. The characters have changed. Different looks and different names. The "zoku" (groups) have changed, and the GUTS attributes have changed. So now instead of Intelligence, Style, and Kindness, there is Humor, Gorgeous, and Passion GUTS points. Along with this there are new teachers. The Cooking Ingredients have changed. Some of the rare items have changed.
The web site is different. UraTama characters go to UraTama town instead of Tamagotchi Town. Both UraTama and EnTama characters go to the same travel tour locations (Flower Hills, Pachi Forest, etc.). Both web sites are accessed through the e-tamago portal. The web address is in the instruction book.
UraTama can connect to EnTama via infrared. They can exchange gifts (which may get transformed in the process) and they can play games, but they can't mate together.
There is an UraTama character chart here:
https://i59.photobucket.com/albums/g310/bin...actersnamed.png