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 2019-08-26T17:16:49Z.
The update package is 454.82 MB.
This is a delta (partial) update that requires
5.1.3 already installed.
This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.
Payload file: a170fdcf2d2ba772f3f429191ded94f4afbf486f.zip.
Direct URL
http://updates-http.cdn-apple.com/2019SummerFCS/patches/041-92197/EDD9CF84-C501-11E9-B860-6B6050566A18/com_apple_MobileAsset_SoftwareUpdate/a170fdcf2d2ba772f3f429191ded94f4afbf486f.zip
Filename
a170fdcf2d2ba772f3f429191ded94f4afbf486f.zip
Other Devices
