Of course, first you should check if the phone will actually work with the carrier. It’s especially important if you buy a cheap phone from a lesser known manufacturer, since its specification may make proper functioning on the network impossible. Here’s what you need to know when you buy a phone and bring it to Verizon.
It’s especially important, since US carriers use two different technologies for voice and text services – CDMA and GSM. The CDMA is used by Verizon and the GSM by the rest of the networks, including AT&T and T-Mobile. Both technologies are very different from each other and as of now there is no easy fix that can make a GSM device compatible with a CDMA network. Since most of the world relies on GSM technology, unlocked phones don’t include CDMA networks, hence they normally won’t work on Verizon network.
How you'll use your phone. The pay monthly tariff you choose will differ depending on whether you make a lot of calls, or send more texts or want to use the internet on your mobile so think about your needs before signing up.
At the moment, 4G LTE is the highest standard for wireless internet. However, even though 4G technology used by carriers is uniform throughout the world, it doesn’t mean that a 4G LTE smartphone will work on every single network. That’s because each carrier has its own radio frequencies. In other words, a phone needs to be capable of tuning into frequencies specific to the carrier of your choice in order to work properly. Otherwise, you may have to deal with some serious issues such as significantly slower downloads or no service at all.