An unlocked phone is not tied to a single carrier’s network. It allows you to choose your carrier and phone independently as long as those carriers work on the same wireless technology. With unlocked phones multiple cellular networks can be accessed by swapping in and out SIM Cards. Simply put, unlocked devices are cell phones that recognize SIM cards from any carrier. To pick the right carrier for your unlocked phone, you simply need to know which carriers have the right wireless technology. AT&T and T-Mobile use GSM technology. Verizon and Sprint use CDMA.
On ShopBlackBerry.com we clearly identify the technology and the carriers you can use with our phones.
Why buy an Unlocked Phone?
Many people turn to unlocked phones because of their many advantages. Unlocked phones offer flexibility that locked phones do not. Buying an unlocked phone allows you to choose from a wider range of models. If your preferred phone isn’t available with your carrier, you can buy an unlocked version of your preferred phone. And if you want, you can always get the latest phone and never have to change your phone number or your plan.
Unlocked phones eliminate expensive roaming changes when you are traveling abroad. Most carriers require that you pay additional roaming charges when you travel outside the US. With an unlocked phone, you can buy a prepaid SIM card at your destination and insert it into your phone to start making local calls at local rates while still retaining your personal information.