Error downloading latest OS to Apple Watch

I know this question has been asked in the past, but I would like to check if there is some solution I have failed to follow.


I am getting repeated download messages when trying to download 8.4.2. WatchOS. (I thought I had set the OS to upgrade automatically but I see I am still on version 8.3.). Each time I have ensured I have enough battery, that both phone and watch are on chargers next to each other and on the same wifi. My phone is an iPhone 13 Pro Max running 15.2.1.


I have tried:

  • turning the wifi and bluetooth on and off
  • force restarting both phone and watch
  • checking if there was an update file to delete in iPhone Settings>iPhone Storage>watchOS. (Nothing there)


Can you think of anything else I should be doing?

Apple Watch Series 6, watchOS 8

Posted on Feb 14, 2022 9:05 AM

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6 replies

Feb 16, 2022 12:27 AM in response to ChrisJ4203

I had been trying software update in the watch app on the iPhone interminably. It would simply hang on 'downloading' and after an hour or two I abandoned the effort and took my two devices off their chargers. I had also restarted both devices several times.

Then, mysteriously, last night the iPhone app got beyond "downloading" and actually downloaded (or re-downloaded) os 8.4.2. Goodness knows how this all happened, but the two devices are now in agreement and I'm crossing my fingers this was a mysterious glitch.

Thank you fieryjack and Christj4203 for prompt and helpful suggestions. This is what makes apple discussions such a welcome resource for users far from any nearby support.

Feb 14, 2022 9:14 AM in response to Francesrallen

Try to update from the watch itself.

Place the watch on the charger.

Make sure that your watch is connected to wifi.

On your watch, open the Settings app.

Tap General > Software Update.

Tap Install if a software update is available, then follow the onscreen instructions.

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Error downloading latest OS to Apple Watch

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