I do not own either one but am considering the Fox G10. It is less than half the price of the Emerson Super Karambit BT.
Not real big on knives as self defense weapons unless I just can not carry my Kahr or at least my American derringer. I'd probably just end up using it as a utility knife to open the boxes of my online cigar purchase. Firearms are not good at opening packages unless you do not care about the contents!