watchOS 5.1.2

watchOS

Version

5.1.2

Build ID

16S46

File Size

144.36 MB

Release Date

2018-12-06T18:04:49Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (40mm) →

About This Update

watchOS 5.1.2 (build 16S46) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2018-12-06T18:04:49Z. The update package is 144.36 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 c1c73e21fd0d14058880642d5640e650748fedf4.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallFCS/patches/041-18315/4D5BDB46-F1D1-11E8-BD70-D99772F8D0D4/com_apple_MobileAsset_SoftwareUpdate/c1c73e21fd0d14058880642d5640e650748fedf4.zip