text: **Up button:**
  
  Short press to light up or turn off the screen; one press to go back the dial interface; long press to 
  reactivate the watch. 
  
  **Button down:**
  
  Short press to enter multi-sport mode. 
  In addition, when the watch is in the off-screen state, you can light up the screen by pressing any 
  buttons. 
  
  **Charging instructions:**
  
  Wireless charging, as shown in the picture below. 