Conductive elastic sheet and wearable device

According to the conductive elastic piece and the wearable device, when the wearable device conducts ECG measurement, the transmission path of an electric signal is short, loss of the electric signal can be effectively reduced, stable transmission of the electric signal is guaranteed, the measurement accuracy is improved, and the use experience of a user is improved. The wearable device includes a device body. The device body comprises a shell, a detection circuit board, a connection circuit board, a conductive elastic piece and a key. The shell comprises a middle frame. The middle frame is provided with a key hole, and the key hole is communicated with the inner side and the outer side of the middle frame. The detection circuit board, the connection circuit board and the conductive elastic sheet are all installed on the inner side of the middle frame. The connection circuit board is electrically connected with the detection circuit board. The conductive elastic sheet comprises a main body and a first elastic