First difference: The Famitama isn't out yet.
You can raise an entire family of Tamagotchi on the Famitama. They celebrate together, have meals together and even go to the toilet together. Once you have a full family, you can get a pet.
You can buy the Famitama with a DVD and connect with it using a password system.
Instead of an antenna, you have a padlock with a key.
On the Famitama there are five main families: Mametchi Family, Memetchi Family, Kuchipatchi Family, Furawatchi Family and Gozarutchi Family. Overfeeding will make a Tamagotchi fat (Osumotchi or Metaboritchi), underfeeding will make a Tamagotchi tiny (Puchiputchi or Puchioyatchi).
Here's a character list, plus what I think the English names would be.
Mametchi
Chamametchi
Papamametchi
Mamametchi
Bagubagutchi
Memetchi
Imotchi
Memepapatchi
Mememamatchi
Chitchi
Kuchipatchi
Chibipatchi
Papapatchi
Mamapatchi
On Sen Moguratchi
Furawatchi (Violetchi)
Kizatchi
Papakizatchi
Mamafurawatchi (Mamavioletchi)
Hanatarezoutchi
Gozarutchi
Kunoitchi
Kashiratchi
Okugatatchi
Boy Osumotchi
Girl Osumotchi
Boy Metaboritchi
Girl Metaboritchi
Boy Puchiputchi
Girl Puchiputchi
Boy Puchioyatchi
Girl Puchioyatchi
Kuromametchi
Makiko
Papakurotchi
Majorite
Furikotchi
Hatsugatchi
Mumutchi
Sukatchi
Mimifuwatchi
Pantsutchi (Pantstchi)
Mausutchi
Ahirukutchi
Mattaritchi
Sakuramotchi
Berutchi (Belltchi)
Tororotchi
Mamekatchi
Bomutchi (Bombtchi)
Korokotchi
Ichigotchi
Sherutchi
Hottotitchi (Hotteatchi)
Watatchi
Rabu Zukintchi (Love Zukintchi)
Potetchi (Potatotchi)
Chantotchi
Onputchi
Yonebatchi
Uhyotchi
Nemutchi
Mukugetchi
Jidoutchi
Chaotchi (Ciaotchi)
Nazotchi
Repotchi
Depagatchi
Gaidotchi (Guidetchi)
There are four games: A tea game, a golf game, a channel flicking game and something else.
I hope you're satisfied :furawatchi: