1. Swipe up from the bottom of the screen to access the Control Center. A green phone icon will be displayed to indicate that the iPhone is turned on and connected to the Apple Watch.
2. When the iPhone and cellular are turned off, a red X icon will appear at the top of the clock screen. The Disconnected icon will also display at the top of the Control Center.
3. When the iPhone is turned off and cellular is turned on, green dots will also display at the top of the Control Center.