Press the dial firmly, click Customize, and then slide to the right. Move the green frame to the circle in the middle and turn the crown to replace it.

If there is still no response, you can go to after-sales consultation.

Apple Watch is a new smart watch released on September 9, 2014. It is also a comprehensive health and exercise tracking device. Apple Watch is available in a variety of colors: silver, gold, red, green and white. The Apple Watch screen is made of sapphire. There are so many sensors on the back that it will automatically display when you raise your wrist. The screen is touch-sensitive and the difference between a tap and a click is clear.