watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5531a

File Size

1.32 GB

Release Date

2018-12-19T21:06:21Z

Update Type

Normal release

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm, LTE) →

About This Update

watchOS 5.1.3 (build 16S5531a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-12-19T21:06:21Z. The update package is 1.32 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 6a1246ac8ed542627db268f275b20c2d3aabe248.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-26772/0DFE3DEE-0235-11E9-A17D-F24774092AB8/com_apple_MobileAsset_SoftwareUpdate/6a1246ac8ed542627db268f275b20c2d3aabe248.zip