Apple Watch Keeps Disconnecting from iPhone

Hi

If you have not yet done so, it may help to also update your watch to the latest software:

Update the software on your Apple Watch - Apple Support

Disconnections can be normal, such as when the watch loses the Bluetooth connection with the paired iPhone and no known W-Fi network is available.

Your devices should reconnect automatically a short while after being brought close together again. If they do not, keep your iPhone and watch close by each other and try following these steps until they do:

• Check that both Bluetooth and Wi-Fi are enabled on your iPhone:

  It may help to toggle Bluetooth off and on again on your iPhone (Settings > Bluetooth).

• Check that Airplane Mode is not enabled on your watch:
  • When viewing the time on your watch, swipe up on the watch face > swipe left / right to the Settings Glance.
  • If your watch is not connected and Airplane Mode is turned on, tap the button to turn it off.
  • It may otherwise help to toggle Airplane Mode on and off again.
• Restart both devices, turning both off together, then restarting your iPhone first.
  • Restart your iPhone, iPad, or iPod touch - Apple Support
  • Restart your Apple Watch - Apple Support

For the best performance from your watch, keep both Bluetooth and Wi-Fi permanently enabled on your iPhone.

If your watch repeatedly fails to connect or remain connected with your iPhone as expected, it may help to unpair and re-pair your watch (choose to Restore from Backup when offered the option):

• Unpair your Apple Watch and iPhone - Apple Support
• Set up your Apple Watch - Apple Support

More information:

If your Apple Watch isn't connected to your iPhone - Apple Support