Wireless area network enabled mobile device accessory

A wearable wireless portable device ("WWPD") includes cellular/WAN communications circuitry for establishing a direct connection to a telecommunication network and a low-power short range radio for establishing an indirect connection to the telecommunication network via the communications circuitry of the more feature-rich mobile device. The WWPD may be configured to deactivate its cellular/WAN communications circuitry (and other resource such as GPS) to communicate with a more feature-rich mobile device (e.g., a smartphone) via low-power short range communication technologies when it is in close proximity to the mobile device, and activate its cellular/WAN circuitry to provide cellular and/or network connectivity when it is not in close proximity to the mobile device. The WWPD does not require the bulky battery systems, which enables the WWPD to be packaged into a small and lightweight device, such as a wrist watch or pendant and enables longer battery life for the battery of the WWPD.