The e-Reader is a device made by Nintendo for the Game Boy Advance video game console. It is an add-on device which attaches to the Game Boy Advance. It was released in Japan in December 2001 and in North America in September 2002. It is used to read "e-Reader cards," which are paper cards with video game data on it. To use an e-Reader card, the player swipes the card into the e-Reader's slot. e-Reader cards that were released include:
- NES games
- New levels and power-ups for Super Mario Advance 4: Super Mario Bros. 3
- New items and designs for Animal Crossing
- New trainers that can be battled in Pokémon Ruby and Sapphire
- Minigames, including Mario Party ones
- Game & Watch games
The e-Reader was successful in Japan, with many e-Reader cards being released in only in Japan. It was not as successful in North America, where it stopped being made in 2004.