watchOS 5.1.2

watchOS

Version

5.1.2

Build ID

16S46

File Size

749.31 MB

Release Date

2018-12-06T18:04:15Z

Update Type

Normal release

Delta update - requires 4.2.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 5.1.2 (build 16S46) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-12-06T18:04:15Z. The update package is 749.31 MB. This is a delta (partial) update that requires 4.2.3 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 1b918c9f5a915646b32053415fa90f3394d8ada5.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallFCS/patches/041-04864/427D7F1C-F1D2-11E8-825E-DD047E772D9A/com_apple_MobileAsset_SoftwareUpdate/1b918c9f5a915646b32053415fa90f3394d8ada5.zip