watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5523a

File Size

136.96 MB

Release Date

2018-12-10T18:09:54Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

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 2018-12-10T18:09:54Z. The update package is 136.96 MB. This is a delta (partial) update that requires 5.1 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 464ed5e1f8b078a34c24618406066d4be826eb98.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-24158/83A47BCC-F8DE-11E8-B80F-8B097961F556/com_apple_MobileAsset_SoftwareUpdate/464ed5e1f8b078a34c24618406066d4be826eb98.zip