FaceTime video calling requires a FaceTime-enabled device for the caller and recipient and a Wi-Fi connection. Availability over a cellular network depends on carrier policies; data charges may apply.
All battery claims depend on network configuration and many other factors; actual results will vary. Rechargeable batteries have a limited number of charge cycles and may eventually need to be replaced by an Apple service provider. See www.apple.com/lae/batteries for more information. For more details of iPhone performance tests for talk time, standby time, Internet use, video playback, and audio playback, see www.apple.com/lae/iphone/battery.html.
Some features, applications, and services are not available in all areas. See your carrier for details. Application availability and pricing are subject to change.