They gave them 3.5 stars. While they made several mentions of the 3G Nano, they never explained why the fuze, which has nearly identical features, was rated lower than the 4.5 stars the Nano got. The Fuze has the very useful microsd slot and fm radio in addition to anything the Nano is offering, as well as being much cheaper.
The only thing they said is that it wasn’t as “sleek” or “innovative”. I dislike this kind of bias.