Pokemon Sun and Moon will be launching in America on November 18th, but if you're planning on downloading a digital copy, you might want to consider deleting some of your less-played titles.
According to a tip from Siliconera, Pokemon Sun & Moon's Japanese website recently revealed the games will take up 3.2 gigabytes on your 3DS, respectfully. Since the 3DS comes with a 4 gigabyte card pre-installed, you may need to upgrade if you've been downloading things onto it over the past few years. (That's 26,176 blocks of memory for those of you keeping count.)
Of course, it's likely the English-language version will be even larger, considering the fact that it takes many more English characters to localize Japanese text successfully. And if the US version of Pokemon comes with support for other languages baked in—like Spanish and French—you could be looking at one big download. Hopefully, Nintendo's sometimes-shaky 3DS eShop service can handle all of these gargantuan downloads once November 18th rolls around.