If you're talking about the currently very experimental Scala Native, my response is that comparing such a fledgling implementation to languages built from the ground up for AOT compilation and static linking is just silly.
In Scala the language is stable, the std lib is stable and the runtime is being worked on, in Swift the language is changing heavily, the libraries are under development, but the runtime might be slightly ahead. (If one can describe reference counting as "ahead".)
If not, please explain.