watchOS 5.1.2

watchOS

Version

5.1.2

Build ID

16S6046

File Size

76.49 MB

Release Date

2018-12-06T18:04:50Z

Update Type

Normal release

Delta update - requires 5.1.2 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 16S6046) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2018-12-06T18:04:50Z. The update package is 76.49 MB. This is a delta (partial) update that requires 5.1.2 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 4c9536018b2bd43b2a5b93e8b21917206546157c.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallFCS/patches/041-25175/68EAA5C2-F1D1-11E8-B1E0-D1A84E6353F4/com_apple_MobileAsset_SoftwareUpdate/4c9536018b2bd43b2a5b93e8b21917206546157c.zip