Good lord. Better question would be, what ISN'T different between them. Grappling gloves, offer little to moderate protection and cushion of the hand, and are mainly used for mixing some GnP into ones grappling training. JKD/Ke?po gloves are the unwanted ******* child of a boxing glove and an MMA glove. Too cumbersome to grapple with, but not cushioned enough to box with. I still love my pair though, because they look hella funny
Besides who didn't at some point fantasize about ordering a pair out of the back of Black Belt magazine when they were like 12 years old.