watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5535a

File Size

91.26 MB

Release Date

2019-01-07T18:16:44Z

Update Type

Normal release

Delta update - requires 5.1.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.1.3 (build 16S5535a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2019-01-07T18:16:44Z. The update package is 91.26 MB. This is a delta (partial) update that requires 5.1.2 to already be installed on the device - it cannot be applied from scratch. 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 40120d4fe8ea1a18424db85af9ace44c92a1d048.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-29871/FA515C46-1048-11E9-AAC0-8B923DF199C7/com_apple_MobileAsset_SoftwareUpdate/40120d4fe8ea1a18424db85af9ace44c92a1d048.zip