About This Update
watchOS 5.3.1
(build 16U600) is an official Apple
over-the-air update for the Apple Watch Series 4 (44mm),
released on 2019-08-26T17:16:48Z.
The update package is 454.82 MB.
This is a delta (partial) update that requires
5.1.2 already installed.
This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.
Payload file: a19e05c97356ced103d35291d1b2e4ab6774a81d.zip.
Direct URL
http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-91986/AF8DC820-C501-11E9-B4FF-B377220B582B/com_apple_MobileAsset_SoftwareUpdate/a19e05c97356ced103d35291d1b2e4ab6774a81d.zip
Filename
a19e05c97356ced103d35291d1b2e4ab6774a81d.zip
Other Devices
