Wearable electronic device

A wearable electronic device, comprising:

• a display portion;
• a fixed portion connected with the display portion, the fixed portion being configured to fix the wearable electronic device on the body of a wearer;
• wherein the display portion includes a display screen, and the fixed portion is provided with a thermoelectric conversion module electrically insulated from external environment;
• and the thermoelectric conversion module is configured to convert a temperature difference between a body temperature of the wearer and a temperature of the external environment into electrical energy used for operating the wearable electronic device;
• and
• wherein the thermoelectric conversion module comprises a first plurality of thermoelectric conversion sub-modules using the body of the wearer as a heat source and using the external environment in which the thermoelectric conversion sub-modules are located as a cold source, and a second plurality of thermoelectric conversion sub-modules using the external environment in which the thermoelectric conversion sub-modules are located as a heat source and using the body of the wearer as a cold source, the first plurality of the thermoelectric conversion sub-modules and the second plurality of thermoelectric conversion sub-modules being arranged alternately.