About This Update
watchOS 5.1.3
(build 16S5531a) is an official Apple
over-the-air update for the Apple Watch Series 4 (44mm),
released on 2018-12-19T21:06:36Z.
The update package is 148.59 MB.
This is a delta (partial) update that requires
5.1.1 already installed.
This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.
Payload file: 15d13e6b7796d284990dce152883e6619635a2fc.zip.
Direct URL
http://updates-http.cdn-apple.com/2018FallSeed/patches/041-26672/B6A3A5E0-022D-11E9-9CC2-C25EA6CEDA55/com_apple_MobileAsset_SoftwareUpdate/15d13e6b7796d284990dce152883e6619635a2fc.zip
Filename
15d13e6b7796d284990dce152883e6619635a2fc.zip
Other Devices
