Play DSi and DS Games
The primary function of the Nintendo DSi is portable gaming. You can play all of the latest DSi games and the DSi is also backwards-compatible with DS games, meaning you can play your old DS games on your new DSi. The console incorporates both buttons and touchscreen controls for gaming.
Record and Edit Sound.
You can use the DSi's built-in microphone to record sounds. Then using the DSi Sound application you can tweak the pitch and speed of the recording for your listening pleasure.
Play Music
The DSi Sound application also allows you to play music on your console. The DSi plays AAC format tracks, making it compatible with iPods and iTunes. The system does not play MP3 files.
Take Pictures
The DSi Camera application transforms your console into a camera and you can use either of the two DSi cameras to capture your images. The application also lets you use 11 different lenses from a "graffiti effect" to the comedy "mischief" lens, which places cartoon features onto your images.
Browse the Internet
You can connect your DSi to the internet using the built in Wi-Fi which can be accessed through the Nintendo DSi Browser, which can be obtained through the DSi Shop.
Instant Message
The instant messaging system PictoChat allows you to talk to other Nintendo DSi users within the Wi-Fi area using text, smilies and images that you can draw using the touch screen.