The download size for Sun/Moon has been released: 3.2 GB.
To put it in context: X/Y/OR/AS were 1.8 GB each, Super Smash Bros. 3DS was 2.1 GB, and Xenoblade Chronicles 3D was 3.6 GB.
To put it in context: X/Y/OR/AS were 1.8 GB each, Super Smash Bros. 3DS was 2.1 GB, and Xenoblade Chronicles 3D was 3.6 GB.