How do I do this

Hi keily144,

Thank you for using the Apple Support Communities! If you're Apple Watch isn't connected to you're iPhone, the guidance from the article below can help:

If your Apple Watch isn't connected or paired with your iPhone

If you don't get notifications, messages, or calls on your Apple Watch, your Apple Watch and iPhone might not be connected. When your devices disconnect, the red iPhone icon or the red X icon appears on your watch face. You can also check your connection in Control Center. When your Apple Watch connects again, the green iPhone icon appears.

First, bring your Apple Watch and paired iPhone close together. If you still see that the devices are disconnected and need help, try the steps below. After each step, see if your devices can connect.

Try to connect your Apple Watch and iPhone again

1. Keep your Apple Watch and paired iPhone close together to make sure that they're in range.

2. On your iPhone, make sure that Airplane Mode is off and that Wi-Fi and Bluetooth are on. To check, open Control Center. 

3. If you see the Airplane Mode icon on your watch face, Airplane Mode is on. Open Control Center, then turn off Airplane Mode. 

4. Restart your Apple Watch and iPhone.

Unpair your devices, then pair them again

If your Apple Watch still can't connect, unpair it from your iPhone, then pair your Apple Watch and iPhone again.

If you still need help, contact Apple Support.

Hope this helps!

Have a great day.