Systems and methods for docking portable electronic devices. A master device may be docked to a slave device to control the operation of the slave device. The slave device may have a form factor different than that of the master device. For example, the slave device may be a tablet and the master device may be a handheld device such as a smart phone. The slave device may include a retention mechanism to retain the master device in a docked position with respect to the slave device. When in the docked position, the master device may be in operative communication with one or more hardware components of the slave device to control the operation thereof. The slave device may lack the ability to exploit the full functionality of the one or more hardware components of the slave device without communication with the master device.