The main reason is that the storage is not reported correctly. Often, leftover files from Siri, system updates, or iCloud (like reminders) quietly use up the available space. In this article, we ill discuss different ways to solve this error.
1. Restart the Apple Watch and iPhone
A full storage warning may show up on the Apple Watch because of a synchronization error between the watch and your iPhone. Restarting both devices usually fixes the problem by resetting the sync process.
2. Update the WatchOS Directly on the Watch
If you try to update your watch using the Watch app and see a storage full warning, it could mean the sync between your watch and phone didn’t complete properly. To fix this, update the watch’s operating system directly from the watch itself.
3. Disable Siri on the Watch
Sometimes, the ‘storage full’ notification appears if Siri cannot download or install the required language pack. The watch then attempts to download it repeatedly, filling up storage. To resolve this, try turning off Siri on your watch. If this solves it and you want to keep using Siri, try changing Siri’s accent to American voices and see if the problem stays away.
4. Uninstall Conflicting Apps on the Watch
If an app on the watch is acting up and not working properly, it can use up too much storage space and cause this issue. To fix it, uninstall any apps that might be causing conflicts. The Stocks and Research apps are commonly reported for causing storage full issues. If you have these or similar apps, try uninstalling them. If you need to keep these apps, make sure iCloud sync is enabled for them. You can also try enabling iCloud sync for all apps on the watch, or just for the Watch app on your phone, to see if this solves the problem. If you don’t have the apps we mentioned, try uninstalling apps one by one from both the Watch and the Watch app to find the one causing the issue.
5. Delete Data on the Apple Watch
You may see the ‘storage full’ notification if there is simply too much data on your Apple Watch and it doesn’t have space for important tasks like system updates. To fix this, delete unnecessary data from your watch. Please note: these steps will remove data from your watch, so make sure to back up anything important first. Below, we will cover the most common apps that usually use up the most space.
6. Disable iCloud Sync for the Watch
If your iCloud data is synced to your Apple Watch, it can quickly fill up the watch’s limited space. Turning off iCloud sync for the Watch can help in fixing this. If the issue is resolved now, the data in iCloud was likely the cause. The types of data to check include:
Reminders (especially if they include images)Phone backupsHealth dataDisable Messages Sync in the iCloud Settings on the iPhone
You will need to turn off sync for each data type one by one to find out which one is causing the problem.
7. Re-pair the Watch with the Phone
You may continue to get storage warnings if the pairing between your watch and iPhone is not working correctly. This happens sometimes, even with brand-new Apple Watches. To fix it, unpair and re-pair your watch with the phone.
8. Reset the Apple Watch to Factory Defaults
If none of the previous methods work, resetting your Apple Watch to factory defaults is a simple way to fix storage problems. This will erase everything, uninstall all applications, and return the watch to its original state. After resetting, it’s a good idea to use the Personalized settings instead of duplicates for the following apps: If problems continue, consider using a new Apple ID with your watch and see if it helps. If you still can’t fix the issue, it’s time to contact Apple Support for further assistance.
