I haven't looked at the "cheap" 5 GHz devices in a lot of detail. You might get some ideas from the 300+ opinions at
That thread has been around for a while and some of the candidates from a year ago are no longer available, or have had some "unfortunate" changes in hardware without a model-designation change.
I do have a GL-iNet GL-AR750S which i think is a great travel router, but I believe there are less expensive units that meet your needs. Then again, at US$56 right now, if I didn't already have two, I'd probably be buying another as a spare. You still might be better off with a MIMO 5 GHz unit, as "cute" or compact as the Slate is.
