Pokédex/Manga/The Electric Tale of Pikachu

In the series The Electric Tale of Pikachu, Pokémon Trainers receive their Pokédexes when their application to become a Pokémon Trainer is accepted. A Pokédex contains information on a Pokémon's moves and abilities, as well as general information (such as how some Pokémon, like, dislike Poké Balls) and the ability to tell if a Pokémon has critically low. In addition, all Pokédexes contain a copy of the Trainer's license.

Updated versions of the Pokédex are released from time to time: in Clefairy Tale, gives  a beta version of the latest model of the Pokédex.