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It's both GSM and CDMA. It will work on any U.S. service. However, you'll want to check with your carrier, as some carriers won't activate certain devices, though I'm not entirely sure why. Mine was activated on Virgin Mobile (CDMA) and them moved to Verizon (CDMA & GSM) after Virgin was merged into Boost mobile.
Sorry, there was a problem. Please try again later.I am sorry that I do not know. It works on T-mobile and ATT. My carrier is T-Mobile. It is a very convenient to have two screens while I am working on two projects in the same times.
I would recommend:
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