An electronic device provided includes a host device and a display device. The host device includes a base shell and a handle, wherein the base shell has a first accommodating space and a fourth accommodating space. The handle has a second accommodating space and a third accommodating space. The electronic device further includes a first array antenna, a second array antenna, and a third array antenna. The first array antenna, the second array antenna, and the third array antenna are respectively arranged in three of the first accommodating space, the second accommodating space, the third accommodating space, and the fourth accommodating space, wherein the first array antenna, the second array antenna, and the third array antenna respectively have a first beam, a second beam, and a third beam facing a first axis. Accordingly, the electronic device provides stable connection quality and a higher transmission rate.