I like Kryptonians and all but I don't think its worth it, you can easily break stuff with your strength

I don't need the sun when I'm a Martian. My weakness is fire that was psychologically embedded in my mind (depending on the canon), still a worth it.

I don't think they're weak to fire, just afraid of it but yeah

Superman

Martian

Kryptonian physiology They are human in appearance