watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5523a

File Size

1.25 GB

Release Date

2018-12-10T18:09:56Z

Update Type

Normal release

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 5.1.3 (build 16S5523a) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-12-10T18:09:56Z. The update package is 1.25 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 b5eea432d4d65ed483bd05dbba1c142df2354dcb.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-20852/EE8F17EA-F8DD-11E8-853D-A9313BA7CB36/com_apple_MobileAsset_SoftwareUpdate/b5eea432d4d65ed483bd05dbba1c142df2354dcb.zip