Smith Optics 4D MAG vs Smith Optics I/O

The Smith Optics 4D MAG is a great choice for people with a $270 budget. The Smith Optics I/O, however, is merely decent when compared to its direct competitors.

The Smith Optics 4D MAG was loved by reviewers at OutdoorGearLab, a highly trusted source that performs reliable in-depth testing. It did great in its "Best Ski Goggles of 2021" roundup where it was named its "Top Pick", which, in itself, makes it a product worth considering.

Moving on to the Smith Optics I/O: it was loved by rizknows.com and Expert Reviews - two reliable sources that conduct their own in-depth testing. In fact, it was named "Best Vision" and "Best ski goggles for wearing over glasses" in their respective roundups, which points to it being a product worthy of consideration.