A:Answer Your question is a little confusing.
If you're coming from Argentina, buying the phone in the USA and then using the phone:
1) In the USA, you will need a Sim card from one of the compatible USA carriers listed in Motorola's website: https://www.motorola.com/us/carrier-compatibility
2) Back in Argentina, you will need to be sure that the specifications for this handset lists the frequency/band that is utilized by your cellular provider in Argentina. Motorola likely has a similar compatibility chart for Motorola's Argentina website.
