Wearable device

A wearable device comprises:

• a link having a shape corresponding to lower extremities of a wearer and configured to rotate along a first direction of the wearer about a second direction of the wearer;
• and
• a power supply configured to supply power for rotating the link,
• wherein the link comprises:
• a right link configured to be fixed to a right lower extremity of the wearer and having a lower end configured to contact a ground, and
• a left link configured to be fixed to a left lower extremity of the wearer and having a lower end configured to contact the ground,
• wherein the wearable device is configured to steer the link toward the second direction in a steering mode, and
• wherein the power supply is configured to, in the steering mode, (i) supply power to space the right link and the left link apart from each other in the first direction to thereby cause one of the right link and the left link to position forward relative to the other of the right link and the left link, and (ii) supply power to rotate the one of the right link and the left link rearward to thereby steer the link toward the second direction.