Abstract: A portable computing device may include a set of magnetic elements and a set of electrical contacts. An electronic device may include a sensor may also include a set of magnetic elements and a set of electrical contacts. The portable computing device may attach to the electronic device using the set of magnetic elements and may exchange data with the electronic device using the set of electrical contacts. A power source may also include a set of magnetic elements and a set of electrical contacts. The power source may couple with the portable computing device using the set of magnetic elements and may provide power to the portable computing device using the electrical contacts.

Abstract: A user may carry a wearable device and may push a button on the wearable device to initiate a voice call. A computing system receives the request to initiate a voice call and may analyze datasets provided by the wearable device. The computing system may dynamically route voice calls to different destinations based on datasets received from a wearable device.