One of the nation's leading prepaid carriers, Boost Mobile offers you affordable cell phone service. Cellular Country has the internet's most robust selection of used Boost Mobile cell phones that are ready for you to use with your existing Boost sim card and plan. Simply pop the sim card out of your existing Boost phone and place it in your Cellular Country Boost phone. It's that easy to get up and running. Even better, pay just a fraction of the retail price for all the quality you expect out of a good Boost phone.