The router tables reviewed here cover pretty much the full range, from small benchtop and foldable models, to fairly substantial mobile router tables for the larger workshop. You need to fit a router to them. A shaper is a larger workshop/industrial tool. It has a motor built in, so there’s no need to attach a router. Rather than changing the router bit, there’s often a cutter block that has removable blades (actually called knives). A shaper is a much larger, stand-alone machine, and much more expensive.