iPhone won’t connect to Apple Watch

I was given an Apple Watch Series 8 by a friend. I have an iPhone 12 updated to 27.2. The watch has been factory reset when I go to try to pair and start the initialization this occurs. I turn it on it try’s to pair with screen or code either leads to the issue. It connects then says an update is required. When I go to install it fails and says could not connect to Apple Watch. I’ve tried resetting, turning off both units, plugging in both units, toggling airplane mode. Nothing seems to work.

iPhone 12, iOS 27

Posted on Oct 29, 2026 9:29 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 1, 2026 7:36 AM

Hi there


Please try this

  1. Reset iPhone Network Settings
    • This clears glitchy Bluetooth and Wi-Fi handshakes without deleting your personal data.
    • Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
    • Reconnect to your Wi-Fi network and try pairing again. 
  1. Keep the Watch on its Charger
    • Apple Watches often refuse to download or apply setup updates unless they are sitting physically on their magnetic charging puck. Make sure both the watch and the iPhone have high battery or are plugged in. 


2 replies
Question marked as Top-ranking reply

Nov 1, 2026 7:36 AM in response to Pancake-larry

Hi there


Please try this

  1. Reset iPhone Network Settings
    • This clears glitchy Bluetooth and Wi-Fi handshakes without deleting your personal data.
    • Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
    • Reconnect to your Wi-Fi network and try pairing again. 
  1. Keep the Watch on its Charger
    • Apple Watches often refuse to download or apply setup updates unless they are sitting physically on their magnetic charging puck. Make sure both the watch and the iPhone have high battery or are plugged in. 


iPhone won’t connect to Apple Watch

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.