watchOS 5.1.3

watchOS

Version

5.1.3

Build ID

16S5535a

File Size

181.71 MB

Release Date

2019-01-07T18:16:33Z

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 (42mm, LTE) →

About This Update

watchOS 5.1.3 (build 16S5535a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2019-01-07T18:16:33Z. The update package is 181.71 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 a6f5353f83b647626abd82832876628b383d53ed.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-29898/23B202A2-1049-11E9-A73C-599B3DF199C7/com_apple_MobileAsset_SoftwareUpdate/a6f5353f83b647626abd82832876628b383d53ed.zip