Pokémon Black and White Versions/Compatibility

Black and White are able to connect with all fourth generation core series games, as well as their sequels. Pokémon from Diamond, Pearl, Platinum, HeartGold, and SoulSilver are able to be sent to these games using the Poké Transfer. Like the transfer available in Pal Park, Pokémon sent to Black and White from Generation IV games cannot be returned to their original games. Some event Pokémon released in Generation IV have the ability to unlock more events in Generation V:, , and , transferable via an exclusive method called the Relocator, unlock  and. Additionally, the unused Lock Capsule can theoretically be transferred from Pokémon HeartGold and SoulSilver to obtain.

Black and White also have the ability to connect to the Internet, accessing the Pokémon Dream World; Pokémon acquired in this manner are obtained in the Entree Forest. Although the game cartridges contain infrared technology similar to that used in HeartGold and SoulSilver, Black and White are unable to connect with the Pokéwalker.

The Korean versions, unlike the Korean Generation IV games, can communicate with international versions without any issues.