An electronic device displays at least one device initialization screen. After displaying the at least one device initialization screen, the electronic device displays an instruction screen instructing a user to pair the external device with the electronic device. The electronic device sends first data via wireless communication, displays a pattern comprising identifying information of the electronic device, and receives second data indicating that the external device and the electronic device have been paired using the first data. After receiving the second data, the electronic device provides an aural or haptic indication that the electronic device and the external device have been paired. In some examples, the electronic device is a wearable electronic device and the external device is a smartphone. Pairing the electronic device and the external device may allow the devices to exchange information and operate interactively with one another.