There are two Home Deka Tamagotchi models.
The first model was released in July 2005. It looks like an over-sized KeiTama (or V3), and is available in two colours; standard blue, or Toys-R-Us green. Gotchi points that you've won on it can be transferred to these Japanese model Tamagotchis: KeiTama, Akai-series KeiTama, EnTama, and UraTama. Items you purchase on it can be transfered to these Japanese model Tamagotchis: KeiTama, and Akai-series KeiTama.
The second model was released in October 2006. It looks like an over-sized EnTama (or V4) and is available only in orange. Gotchi points that you've won on this Home Deka Tamagotchi can be transferred to these Japanese model Tamagotchis: KeiTama, Akai-series KeiTama, EnTama, and UraTama. You can not purchase items on this Home Deka Tamagotchi.
Neither Home Deka Tamagotchi can connect to any English-language Tamagotchi.