An ultrasound diagnosis apparatus including: an image processor configured to acquire ultrasound data of an object; a controller configured to generate a wearable signal carrying information corresponding to a difference between the acquired ultrasound data and reference ultrasound data; and a communication module configured to transmit the wearable signal to a wearable device. The wearable signal is acquired by comparing the ultrasound data with the reference ultrasound data and includes information about the difference between the ultrasound data and the reference ultrasound data.