Most people in the US bought iPhones from the carrier, means the device is locked to the network. If you buy an iPhone of the Verizon, you can mean it cannot easily switch to another carrier without eliminating the contract and pay extra charges. This also causes head to travel as you want to use an international SIM card while traveling. My easier to buy Apple, Connect with any carrier for the experience most taxi. You get unlocked iPhone, and then everything you need is to move the SIM card from the old iPhone to get new to start. This may not be sick, even if you have to contact your carrier if your iPhone cannot complete the Esim Transfer due to special features. Apple has not included Tray SIMs from iPhone 1422, if the operator: If you choose the carrier via Apple.com, you will get unlocked iPhone none of you. The deficiency is Apple to have the same offer as the carrier, so you may be lost. However, the carrier often requires a new line, trade, or the update plan, and the slaves may appear very good, if you have Apple’s credit card, if you have an Apple credit card. You must choose the operator here, but Apple confirm the device is all unlocked. You have to fill your credit application to see if you qualify. If you choose to finance your operators on Apple.com, only T-Mobile models and Verizon will be locked. AT & T and Bosing Locked phone iPhones, so it’s not different from buying an installment plan directly from the operating upgrade program: Buy directly to your iPhone upgrade program. Is it worth it? Say widely, not. Most people do not need to upgrade to new iPhone every year. More expensive, although it includes two years of AppleCare + Company Provision Plan. If you want to get the latest iPhone every year, this program makes more taste, but it is still expensive.