The little genius watch is not equipped with a charging head, but it is equipped with a data cable. You need to connect the charging head of your mobile phone with the data cable of your watch to charge. Look for the charging contact of the little genius phone watch, usually on the back of the dial. Insert the original USB charging cable of the watch into the charging contact. Connect the USB charging cable of Little Genius mobile phone watch to the USB charging head, and then plug in the power supply to charge the watch. When the watch has a charging sign, it means that it is charging, just wait patiently for the charging to be completed.