Metal shell wearable device based on spiral printed antenna

The invention discloses metal shell wearable equipment based on a spiral printed antenna. A closed cavity is formed between an upper shell and a lower shell through an annular sealing ring; a control assembly, a first antenna and a second antenna are arranged on the circuit board in the cavity; the first antenna and the second antenna are located on the side, close to the lower shell, of the circuit board, the first antenna is located in a receding area of the circuit board, the first antenna and components of the control assembly are arranged at intervals, the first antenna is a spiral printed antenna, and the second antenna is a receiving antenna; the second antenna is used for activating the transmitting function of the first antenna after receiving a low-frequency signal sent by the vehicle; a digital key car searching function is realized; the first antenna is arranged to be the spiral printed antenna, the transmitting efficiency and the signal strength of the antenna are improved, the antenna and the an