But after testing it out and looking at the two closely, there really isn't any significant difference to me. They even perform the same. They are both just as soft and easy to apply with the same opaque black line. So all I have to say is, what's with the hype?
Smolder (on top) and Feline (on bottom)
I'll let you decide. Here are some pics comparing the two black kohl liners. Let me know if you can see a difference, or if you know of any other differences that I might not be aware of and share in a comment below!
Smolder (on left) and Feline (on right)