In a year that saw a few highly proclaimed gadget introductions (the Amazon Kindle Fire, in particular) and some updates to high-profile staples such as Apple's iPhone and iPad, Scientific American takes a look at 10 gizmos that, if they did not land on your radar screen in 2011, deserve a look in the coming year.

This year's Gadget Guide runs the gamut—from tech that takes your fitness regimen to the next level to cameras that push optical limits to tools that help environmentally conscious consumers shrink their footprints.

View a slide show of the 2011 Scientific American Gadget Guide.