Samsung Galaxy S4 ready to get the approval from FCC. It means the Galaxy S4 ready to hit US in next couple weeks. In MetroPCS the Galaxy S4 will have codename SCH-R970 while in Sprint SPH-L720, either has CDMA,EV-DO and LTE. the Sprint version has HSPA 3G for world roaming, while the MetroPCS model drops HSPA but has a broad four bands of LTE.
Other carriers which support four bands LTE is US Cellular. But, don’t forget to the bigger US carriers, they are AT&T, T-Mobile and Verizon, they will bring GS4 to their lineup.