This is according to an email that someone sent to Nintendo in which based on the reply, the Nintendo rep suggested that he keeps 1GB of space free in which it will be used for the game’s installation. The rep also said that additional details regarding system requirements will be available upon the game’s release.
We’re not sure how accurate this information is and whether or not the rep is simply guessing or if it is the actual amount. Either way if you are a bit tight on storage space then maybe it’s a good idea to start clearing up unused apps, delete photos or videos that are no longer needed, and so on in preparation for the game.
Fire Emblem Heroes will be released on the 2nd of February, 2017 which is this coming Thursday so we guess we won’t have to wait too long for the official details.