Available in blue or black colours, the device boasts new features like a bigger screen and built-in cameras.
The device was released in Japan in December to strong sales.
MCV understands details on the UK and European launch will be made public very soon.
"Ever since the arrival of the first Game Boy, consumers worldwide have turned to Nintendo for their portable gaming," said Cammie Dunaway, Nintendo of America's executive vice president of sales ad marketing.
"Nintendo DSi builds on Nintendo's commitment to bringing fun and creative entertainment to everyone, and will allow consumers to personalize and share their very own experiences."