Last Updated: Nov 16, 2013
You can use the iPhone 4S all over the world. When traveling internationally, there is a setting that must be turned on within the device to connect to GSM. The phone will work with a SIM that is provided within the device out of the box. International voice and data charges are on a pay-as-you-go basis and vary based on the country where you are using your phone. A list of rates is available at www.sprint.com/international.
Sprint has two international voice plans that offer discounted voice rates:
Sprint does supply notifications of data roaming charges to protect customers from high costs. Notifications are sent to your preferred method, either text or email, once the device exceeds approximately $50, $100, $150 and each additional $50 in international data roaming usage. To protect you from additional charges, the device’s international data roaming capability may be suspended after you exceed international data roaming limits in a billing cycle. See Know what data limits apply when roaming internationally for more details.