According to a press release, Pokémon Black and White versions sold 1.08 million copies on the first day of US release and broke the previous Pokémon sales record-holder, Pokémon Diamond and Pearl Versions.
The previous one-day sales record holder, Pokémon Diamond and Pearl Versions, sold more than 780,000 copies on the first day of its US release.
Original press release
NEW POKÉMON VIDEO GAMES SHATTER U.S. SALES RECORDS
Pokémon Black Version and Pokémon White Version Combine to Sell More Than 1 Million in a Single Day
REDMOND, Wash., March 8, 2011 – Two new Pokémon™ video games went on sale on March 6 and promptly shattered all previous U.S. Pokémon sales records. The Pokémon Black Version and Pokémon White Version games for the Nintendo DS™ family of systems became the fastest-selling Pokémon video games of all time, selling more than 1.08 million units after just one day of availability. That surpasses the previous one-day sales record of more than 780,000 set by the Pokémon Diamond Version and Pokémon Pearl Version games in April 2007.
"Longtime Pokémon fans are attracted to the new Pokémon, new battle systems and a new region to explore, while newcomers enjoy the ability to jump in and have fun right away," said Charlie Scibetta, Nintendo of America's senior director of Corporate Communications. "These sales numbers illustrate the continued strength of the Nintendo DS family of systems. Already established as the nation's best-selling video game platform of all time, the installed base of more than 47 million makes it the ideal hand-held for developers to reach a huge gaming-focused target audience."
Pokémon Black Version and Pokémon White Version feature more than 150 new Pokémon for players to catch, train and battle. The never-before-seen Unova region gives players a whole new world to explore. For the first time in the series, in-game environments change with the four seasons. The games also introduce Triple Battles and Rotation Battles, which give players even more choices when battling.
For more information about Pokémon Black Version and Pokémon White Version, visit http://www.pokemonblackwhite.com.