watchOS 5.1.2

watchOS

Version

5.1.2

Build ID

16S5046a

File Size

145.6 MB

Release Date

2018-11-15T21:18:37Z

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 16S5046a) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2018-11-15T21:18:37Z. The update package is 145.6 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 bbe2ff4356fafe1f9794e6595bc21923ea0addaf.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-25134/8031C3A2-E76B-11E8-A2E2-9D3C55D8F596/com_apple_MobileAsset_SoftwareUpdate/bbe2ff4356fafe1f9794e6595bc21923ea0addaf.zip