watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S6535

File Size

96.8 MB

Release Date

2019-01-22T18:12:30Z

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 (38mm) →

About This Update

watchOS 5.1.3 (build 16S6535) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2019-01-22T18:12:30Z. The update package is 96.8 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 3c43407f891cb7508bacf091a71652e5c09537f9.zip.

Direct URL

http://updates-http.cdn-apple.com/2019WinterFCS/patches/041-22478/6738DE7A-15F7-11E9-A8EA-0FDC4CC90A65/com_apple_MobileAsset_SoftwareUpdate/3c43407f891cb7508bacf091a71652e5c09537f9.zip