Jesus wanted to get the second generation Motorola Moto X and he's heard that Sprint has stopped carrying them. Leo says that's because everyone is moving away from GSM and CDMA towards VoLTE versions. There's talk that if he were to buy a Sprint MVNO SIM in an unlocked Moto X, it'll work. Eventually, all phones will be compatible with all services, which is how it should be. Check out MotoMaker.com. He should also make sure he gets a phone with the right radio frequencies.