Understanding the difference between Code Division Multiple Access (CDMA) and Global System for Mobiles (GSM) — two legacy radio telecommunications standards — is becoming less and less critical for ...

IPhone 4 compatible with the CDMA 2000 system was announced for the US biggest mobile phone company "Verizon" this January, but notice whether KDDI which supports the same communication method will ...

So you are looking for the best smartphones with Nano SIM card slots? Well, let’s get into it then. Those of you who are not familiar with SIM cards, I bet you use CDMA phones. SIM (subscriber ...

The teardown kings at iFixit have discovered that Apple’s new Verizon CDMA iPhone has a Qualcomm dual-mode GSM/CDMA chip under the hood. That means, as iFixit notes, “Apple could have supported GSM” ...

Pay-as-you-go cell phone provider Straight Talk employs SIM cards, allowing you to use your own unlocked GSM or CDMA phone on the network or purchase one of the phones that the company offers directly ...