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 2019-08-26T17:16:52Z.
The update package is 105.64 MB.
This is a delta (partial) update that requires
5.2.1 already installed.
This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.
Payload file: ed211b2df8578c4c92e06476c812994c8194d84d.zip.
Direct URL
http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-92180/DA146DF6-C501-11E9-A936-CC5C50566A18/com_apple_MobileAsset_SoftwareUpdate/ed211b2df8578c4c92e06476c812994c8194d84d.zip
Filename
ed211b2df8578c4c92e06476c812994c8194d84d.zip
Other Devices
