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Can't install watchOS 7.3

Apple Watch 3 here. I keep trying to install watchOS 7.3 and get "Unable to Install Update" "An error occurred installing the latest version of watchOS on your Apple Watch. I updated my iPhone yesterday to iOS 14.4. I then got a notification that I didn't have enough "room" on my watch to install the latest OS. I did what I had to do last time I got an update: I unpaired my watch from my phone -- which BTW is a PITA to have to do this every time. And I am now getting this new error. YAY. Are there any other work arounds for this?

Posted on Jan 28, 2021 8:32 AM

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Posted on Jan 28, 2021 4:51 PM

I performed a hard reset on my Apple Watch (pressed and held the side button and crowned until the screen went black) and then opened up the Watch app on my phone and saw a message that there was an error with the download and selected try again and was able to install. Let me know if this helps!

12 replies

Feb 26, 2021 5:26 PM in response to caris272

I have done hard resets on the iPhone 8 and the Apple 3 watch 4 times - and it keeps telling me it does not have enough space for the install. According to Apple, this is a known problem. I'll live with the older OS and will forget trying to do the update. Very disappointed that Apple has yet to release a fix for this product - it would appear that the version 3 watch is the primary one that has this issue. If anyone has any other suggestions other than decoupling the watch from the phone please post - it's something I have done twice to install updates, but no way will I keep going through that procedure. As someone aptly said, that is a total PIA.

Can't install watchOS 7.3

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