The official digital file size for on the Nintendo 3DS is approximately 3.2 GB (26,215 blocks). While some online sources may list slightly smaller file sizes around 3.0 GB or 3.1 GB for various region-specific versions or modified files, the standard download version typically requires a 4 GB SD card to accommodate the full game and save data. Important: Availability of Digital Downloads
As of , the Nintendo 3DS eShop has officially closed . Download Pokemon Sun (EU) | 3DS File | 3.1G
You can no longer purchase digital copies of Pokémon Sun directly from the official store. The official digital file size for on the
Since digital purchases are no longer available, the primary legal way to play is through physical retail copies: Download Pokemon Sun (EU) | 3DS File | 3.1G
Pokémon Sun And Moon's download size is over 3 gigabytes - Vooks