Possibly, but the body shapes aren't that similar - the top and bottom horns are quite different. They curve in towards the neck much more on the HB than on the Kala. IMNSHO the HB horns are better looking, but HB don't make a 5-string solid bass uke - yet. Come to that, Kala have abandoned the SUB.
The HB does look very like another bass uke though - https://www.basscentre.com/bass-centre-ashbory-bass.html although I'm not sure if stocks of that will ever be replenished, and they're not doing a 5-string version (I asked them a few years ago).