watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5535a

File Size

182.15 MB

Release Date

2019-01-07T18:16:28Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm, LTE) →

About This Update

watchOS 5.1.3 (build 16S5535a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2019-01-07T18:16:28Z. The update package is 182.15 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 851bcf885d3655e5e2c6ec501cd1b2e48da7e1a7.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-29917/43EA6122-1049-11E9-B4E8-949F3DF199C7/com_apple_MobileAsset_SoftwareUpdate/851bcf885d3655e5e2c6ec501cd1b2e48da7e1a7.zip