Embodiments of electronic wristwatches are disclosed. According to one embodiment, an electronic wristband can provide additional electrical circuitry or devices that can be made available for use as or with an electronic device. In one embodiment, the electronic device can be a mobile electronic device that can be removably coupled to the electronic wristband which provides the additional circuitry or devices. Advantageously, the electronic device can utilize the additional electrical circuitry or devices provided within the electronic wristband to augment the capabilities of the electronic device. In another embodiment, the electronic device can be integrally formed with the electronic wristband which provides the additional circuitry or devices.