Try Reading only the threads about folding Bikes here: http://www.bikeforums.net/search.php?searchid=7543609

About the other one: I only know it is a 26 bike and personally I would newer buy a 26" bike if I wanted a folder. It is not smaller when folded, just a different shape..

If you need a cheap bike then look for a fair quality bike second hand instead of a new cheap one.