Wearing the watch

To ensure the accuracy of the measurement, place the watch body in the middle of the back of your wrist. The edge of the watch's body should be below the root of the ulnar styloid process, and should not press the root of the ulnar styloid process or be too far away from it. The center of the watch's face should be on your wrist about two fingers width away from the palm.

Do not attach a protector to the back of your watch. Your watch's bottom cover contains a sensor that can identify your body. If the sensor is blocked, the identification may fail or be inaccurate, affecting heart rate, ECG, blood oxygen, and sleep data measurements.