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The new versions of Apple Watch always add news and in many cases corrections of errors or failures detected. In this case the arrival of watchOS 7.0.3 is directly related to solving a specific problem Detected in version 7.0.2 of some Apple smartwatch models.
Unexpected reboots on these Apple Watch have precipitated the launch of this new version, 7.0.3 is exclusive for Apple Watch Series 3, so it is not available for other models. The build number that this new version has is 18R410.
Apple responds to issues with updates
As bad as it may seem to us to have to update our equipment so frequently, we can say that this is always good as new versions released by Apple always fix bugs And this time there was a major problem that the media seemed not to notice (since there are no publications about it) and that caused the Apple Watch Series 3 to restart unexpectedly.
For those who have an Apple Watch Series 3, they can now update to the latest version available and for this they may have to access the menu General> Software Update, if they do not have automatic updates activated. In case they do have these updates active, the watch will already have this new version installed. Remember that watchOS versions 7 onwards are compatible with Series 3, 4, 5 models and the most recent devices launched by Apple, Series 6 and Apple Watch SE.
The media were aware of this problem, as thousands of affected users were denouncing it through the Apple community.