A wearable device, comprising: a dial, wherein the dial is provided with a receiving groove; a watch body, at least partially arranged in the receiving groove and rotatably connected to the dial, wherein the watch body is provided with a functional component; and characterized in that a position detection member, comprising a first component and a second component, wherein one of the first component and the second component is arranged on the dial, the other of the first component and the second component is arranged on the watch body, the first component comprises a first subcomponent and a second subcomponent, and the first subcomponent and the second subcomponent are spaced from each other in a rotation direction of the watch body; wherein the position detection member has a first state and a second state, when the position detection member is in the first state, the first subcomponent is opposite to the second component, and when the position detection member is in the second state, the second subcomponent is opposite to the second component; wherein the first subcomponent, the second subcomponent, and the second component are all metal plate structures; and when the position detection member is in the first state, the first subcomponent is opposite to the second component to form a first parallel plate capacitor, when the position detection member is in the second state, the second subcomponent is opposite to the second component to form a second parallel plate capacitor, and the capacitance of the first parallel plate capacitor is different from the capacitance of the second parallel plate capacitor; or the first component is a conductive component, the second component comprises a contact, the first subcomponent comprises a first conductive subcomponent, the second subcomponent comprises a second conductive subcomponent, when the position detection member is in the first state, the first conductive subcomponent is electrically connected to the contact, and when the position detection member is in the second state, the second conductive subcomponent is electrically connected to the contact; or the first component comprises contacts, the second component comprises a conductive component, the first subcomponent comprises a first sub-contact, the second subcomponent comprises a second sub-contact, when the position detection member is in the first state, the first sub-contact is electrically connected to the conductive component, and when the position detection member is in the second state, the second sub-contact is electrically connected to the conductive component. a dial, wherein the dial is provided with a receiving groove; a watch body, at least partially arranged in the receiving groove and rotatably connected to the dial, wherein the watch body is provided with a functional component; and characterized in that a position detection member, comprising a first component and a second component, wherein one of the first component and the second component is arranged on the dial, the other of the first component and the second component is arranged on the watch body, the first component comprises a first subcomponent and a second subcomponent, and the first subcomponent and the second subcomponent are spaced from each other in a rotation direction of the watch body; wherein the position detection member has a first state and a second state, when the position detection member is in the first state, the first subcomponent is opposite to the second component, and when the position detection member is in the second state, the second subcomponent is opposite to the second component; wherein the first subcomponent, the second subcomponent, and the second component are all metal plate structures; and when the position detection member is in the first state, the first subcomponent is opposite to the second component to form a first parallel plate capacitor, when the position detection member is in the second state, the second subcomponent is opposite to the second component to form a second parallel plate capacitor, and the capacitance of the first parallel plate capacitor is different from the capacitance of the second parallel plate capacitor; or the first component is a conductive component, the second component comprises a contact, the first subcomponent comprises a first conductive subcomponent, the second subcomponent comprises a second conductive subcomponent, when the position detection member is in the first state, the first conductive subcomponent is electrically connected to the contact, and when the position detection member is in the second state, the second conductive subcomponent is electrically connected to the contact; or the first component comprises contacts, the second component comprises a conductive component, the first subcomponent comprises a first sub-contact, the second subcomponent comprises a second sub-contact, when the position detection member is in the first state, the first sub-contact is electrically connected to the conductive component, and when the position detection member is in the second state, the second sub-contact is electrically connected to the conductive component.