Skip to main content

Recommended Buying Guides

See all guides
See all guides

About CDMA GSM

Two technologies rule the mobile phone world: GSM and CDMA; to access them both, you will need a phone that is CDMA/GSM compatible. These phones are also called global phones or dual-mode phones. In the North America, CDMA is the most common type of technology used in mobile phones. This changes when you take your phone overseas. For instance, GSM is the standard in Europe. For frequent travelers, a CDMA/GSM dual-mode phone is a must. You can connect to a local CDMA network when in the US or Mexico, then pop in a local SIM card when overseas. The freedom to join a local cellular network allows you to avoid the excessive charges that come with using your home carrier's network while traveling. On eBay you can purchase unlocked CDMA/GSM cell phones, which means that the phone isn't locked to any one carrier. This allows you to change carriers at your discretion. Look for a phone that's stylish, fun to use, and allows you to hop networks when you are abroad.