The forthcoming Wii Mini doesn’t include an SD card slot, unlike the original Wii and new Wii U. This means that transferring saves is not possible on the compact console; it cannot import or export saves. Also, unlike the six-year-old Wii, Wii Mini can’t connect to the internet and doesn’t play Nintendo GameCube games.The redesigned Wii console launches in Canada on December 7th and will cost $99.99.
Nintendo of Canada’s Matt Ryan also detailed the difference between the Wii Mini and Wii U markets this holiday season, “… they are two very different products for a different type of player. It really depends on the experience that players want and their preferred investment in their gaming console. If a player just wants to play Wii games, Wii mini is a great choice at a great price. If the player wants more from their system, Wii U is the latest innovation of fun from Nintendo.”
Nintendo Japan has confirmed via its official website that downloaded Wii U software can not be saved to the SD card. If you’re looking to save software on something other than an SD card you will either need to use your limited Wii U internal storage space, or, invest in an external hard drive.
Downloaded software can only be played on the Wii U it was originally bought from. Meaning if you download a game to an external HDD and try to use that HDD on another Wii U, it won’t work. Downloaded software is saved to the internal memory or what’s in the USB slot. Downloaded software can’t be saved to the SD card.
If you want to download Style Savvy: Trendsetters from the Nintendo eShop for Nintendo 3DS, you’ll need at least 1.4GB of free space on your SD Card. The downloadable version of the fashion video game requires more than 10,500 blocks of space, which makes it the biggest download from the Nintendo eShop to date, outpacing other retail and downloadable games, such as New Super Mario Bros. 2, and the forthcoming Paper Mario: Sticker Star, which requires 4,199 blocks.
It was rumored that the Wii U would feature 8 GB of internal storage, but Satoru Iwata clarified that Nintendo did not reveal specifics regarding Wii U’s hard drive. Iwata reconfirmed that Wii U users can purchase a hard drive – of their choice – and attach it to the Wii U’s USB port. Although the Wii U may have a small amount of built-in storage, Nintendo may provide an SD card with each console – like they do with the Nintendo 3DS.
“We haven’t said anything about a hard drive that we’ll be including with the system itself. But we have said, through the USB connection, consumers will be able to take advantage of a wide range of the hard drives that are available on the market, and for quite cheap now, to add memory to their system however they like.”
Edit: The Wii U does have built in storage. Wii U uses an internal flash memory. It also supports SD memory cards and external USB storage.