Nonetheless, which among all the providers offers the best prepaid SIM card USA? This leaves you with only AT&T and T-Mobile for big providers. Unfortunately, there are not many choices in the GSM market, as Verizon and Sprit, two of the biggest carriers, use CDMA, a different mobile technology. What does it mean for the end user? CDMA phones are tied to the provider! You can’t even change to a different provider within the same country unless your phone comes with an ‘unlocked’ SIM Card slot! GSM phones have the capability to be used across other GSM network which makes roaming much easier. Over 210 countries worldwide support only the GSM technology including Europe. Nowadays, CDMA is almost exclusively used in the USA, partly in Japan & Canada. In general, the key differences between those two technologies are the security factors, the global reach and the LTE data speeds. That’s why if you going to pay for an extra service, you’ll want the very best.Įspecially for the US telecommunications market, it is very important to know the main distinctions of CDMA and the GSM in the mobile communication sector.

When you’re coming only to visit the country, you probably have a lot of other expenses already planned in for your trip abroad. It is widely known that telecommunications in the USA are very expensive compared to other countries.

Verizon prepaid sim card