Need help understanding

[onelove2holdon2]

I have a galaxy s4 sch-r970 from us cellular it's active and I have a galaxy s5 contract not active.
I was wondering if I had the galaxy s5 unlock can I take my sim card out of the galaxy s4 and use the galaxy s5?

 

[GeRgY]

if your S5 is unlocked... you may put any cards.
Just try before you make make next steps.