SMART WATCH AND MODE SWITCHING METHOD THEREFOR

Disclosed is a smart watch. A power supply management unit (30) thereof is provided with two control signal input circuits, so that when a high level signal output by a master control unit (10) and/or a slave control unit (20) is received, the power supply management unit (30) can output a high level voltage signal so as to provide a power supply voltage to the slave control unit (20) electrically connected thereto. Therefore, when the power supply management unit (30) is in a power-on state under the control of the master control unit (10) and realizes the supply of power to the slave control unit (20), the power supply management unit (30) can keep providing the power supply voltage to the slave control unit (20) by outputting the high level signal from the slave control unit (20) to the power supply management unit (30), so that the power-on and power-off states of the master control unit (10) do not affect the power-on state of the slave control unit (20) and the power supply management unit (30). Further