The first WonderSwan console was developed as a grayscale device by Koto Laboratory, the company founded by former Nintendo engineer Gunpei Yokoi (横井 軍平). Bandai showed off the new handheld system at the 1999 Tokyo Toy Show.
It was soon followed by the WonderSwan Color (ワンダースワン カラー). A range of peripheral accessories were produced, such as the WonderWave infrared communicator and the WonderBorg robotic kit, which were shown at the 2000 Tokyo Toy Show. The active matrix SwanCrystal (スワンクリスタル) was unveiled by Bandai at the 2002 Tokyo Toy Show. Though well-received, the WonderSwan line was unable to fend off competition from Nintendo's Game Boy Advance and was eventually discontinued in 2003.
In 2018, a scene in the Blu-ray release of Evangelion: 2.22 depicted the character Asuka with a fictitious handheld console that resembled the back of a WonderSwan bearing Bandai and Pippin platform logos.
- Bandai WonderSwan 101: A Beginner's Guide, Racketboy. 2007-07-06.
- Bandai Says Goodbye to Pippin by Chris Johnston, GameSpot. 1998-02-27.
- Hardware Classics: Bandai WonderSwan by Damien McFerran, Nintendo Life. 2014-03-11.
- 1999年東京おもちゃショー ゴーゴーファイブ ウルトラマンガイア (Japanese) by kbigstone, YouTube. 2013-01-25.
- 2000東京おもちゃショー開幕 (Japanese) by funatsu, PC Watch. 2000-03-16.
- Swan Crystal debuts at the Tokyo Toy Show 2002 by Yukiyoshi Ike Sato, GameSpot. 2006-05-17.
- Device solution: WonderSwan, Koto Laboratory. Archived 2016-03-03.
- Definitely a Wonderswan, however the art most closely resembles Donkey Kong, from the Famicom Pulse line. Also, they also threw the Apple/Bandai Pippin logo on there for maximum easter egg weirdness. by EvaMonkey, Twitter. 2018-12-27.
- Swan of Wonders at Weebly
- Bandai Wonderswan at Kultboy
- Bandai WonderSwan at RF Generation
- Bandai WonderSwan at Rooster Teeth Gaming Bits
- The Bandai Wonder Swan FAQ at Digital Press
- WonderSwan (Platform) at Giant Bomb
- WonderSwan at Retro Gamer
- WonderSwan at Wikipedia