Devices and methods store provisioning data for use in one or mobile devices within a SIM card enclosed within a personal article, such as a wrist watch or item of jewelry. A close range communication link, such as a near field communication (NFC) protocol link, is used to transmit the provisioning data from the personal article to one or more mobile devices. The close range communication link may also be used to transmit updated provisioning data received by a mobile device in an over the air updating procedure via a cellular communications network link to the personal item for storage in the SIM card housed within a personal article. The mobile device may authenticate itself to the personal article prior to the transmission of provisioning data between the devices.