watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S6535

File Size

67.05 MB

Release Date

2019-01-22T18:13:47Z

Update Type

Normal release

Delta update - requires 5.1.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (44mm) →

About This Update

watchOS 5.1.3 (build 16S6535) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2019-01-22T18:13:47Z. The update package is 67.05 MB. This is a delta (partial) update that requires 5.1.3 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 14fa22af39d3cdf08c56e68c6562642c53b93a72.zip.

Direct URL

http://updates-http.cdn-apple.com/2019WinterFCS/patches/041-30708/CF1FC144-17EA-11E9-B6A9-8FE26684396E/com_apple_MobileAsset_SoftwareUpdate/14fa22af39d3cdf08c56e68c6562642c53b93a72.zip