The crossover fighting game will launch on the PlayStation Vita in North America on October 23. A European release is likely to follow on October 26.
The PlayStation Vita version will contain 55 playable characters, including the five PS3-exclusive fighters and the 12 soon-to-be-released as downloadable content for consoles.
The Vita port will also feature cross-platform play with the PS3, as well as touchscreen controls and augmented reality features.
Players will also receive a code to download alternative costumes for the 38 original fighters.
Street Fighter X Tekken will arrive on the Vita after this summer's recently announced iOS release.
Producer Yoshinori Ono fell ill during the Asian leg of its promotional tour. Ono has since criticised Capcom for overworking employees.
> Read Digital Spy's Street Fighter X Tekken review
Watch a trailer for Street Fighter X Tekken below: