Abstract: Systems and methods enabling cellular data telecommunications carrier network access to portable devices via a smartwatch are disclosed. A smartwatch can include a subscriber identification module (SIM), a wireless cellular data network communications module, and a short-range wireless data communications module. A registration module can facilitate registration of portable devices with the smartwatch to receive, obtain, and transmit voice, data, and text on behalf of the user from a network carrier through the smartwatch when the smartwatch is in communication with the network carrier via the wireless cellular data network communications module and when the portable devices are within short-range radio frequency communication with the smartwatch via the short range wireless data communications module.