Most mobile phones are compatible with the USA phone sim card for calls, SMS and data, but it is important to check that your specific model phone is in fact compatible.  




If your phone is unlocked and operates on any of the following frequencies, it will work with the USA sim card:




  • 2G 850/1900 MHz

  • 3G/UMTS 850/1900 MHz

  • 4G/LTE Band 2 (1900 MHz), Band 4 (1700 MHz), Band 5 (800 MHz), Band 17 (700 MHz)




Accordingly, all unlocked iPhones are compatible with the USA sim card. 



Most other mobile phones are compatible and that includes Samsung Galaxy, HTC, Android etc and most other Smartphones.  But it is important that you check.  Your phone must also be unlocked to use the USA sim card.  



How to check if your mobile phone is compatible




Simply go to www.gsmarena.com and search for the exact make and model of your phone by entering its details in the search field in the top right.  When you have located the page with your phone's details, have a look next to the "General" information about 2G Network and 3G Network:




(a) If 3G Network includes 850 or 1900 then your phone is compatible for calls, SMS and 3G data/mobile web.  




(b) If 2G Network includes 850 or 1900 (but 3G network does not include 850 or 1900) then your phone is compatible for calls, SMS and 2G data/mobile web (ie slow data/mobile web).




(c) If 3G Network or 2G Network does not include either 850 or 1900 then your phone is not compatible whatsoever with the USA sim card and it will not work for you.