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PCMag reviews products, but we may earn affiliate commissions from buying links on this page.. Two basic technologies in mobile phones, CDMA and GSM represent a gap you can't cross. They're the reason you can't use many AT&T phones on Verizon's network and vice versa. But what does CDMA vs. GSM really mean for you?
CDMA (Code Division Multiple Access) and GSM (Global System for Mobiles) are shorthand for the two major radio systems used in cell phones. Both acronyms tend to group together a bunch of technologies run by the same entities. In this story, I'll try to explain who uses which technology and what the real differences are. How Much It Cost To Unlock Iphone 6 Plus more. Which Carriers Are CDMA? Which Are GSM? In the US, Sprint, Verizon and US Cellular use CDMA. Cheap Unlocked Iphones Under 100 there. AT&T and T-Mobile use GSM.
