nuckles87 on 27 July 2017
The fact that both systems suffered significant supply issues makes any kind of comparison between the two consoles pretty pointless at this point. All this really demonstrates is that Nintendo has been less able to supply Switchs compared to Wiis, due to tighter component shortages.
The only reasonable thought one can take away from this comparison is that the Switch is, like the Wii, struggling to meet demand even nearly 5 months after launch. For the moment, that's a pretty good situation for Nintendo to be in. 4.7 million in 4 months in the middle of the year is a damn good number.
