watchOS 5.1

watchOS

Version

5.1

Build ID

16R5589c

File Size

749.08 MB

Release Date

2018-10-22T17:19:44Z

Update Type

Normal release

Delta update - requires 4.3.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm) →

About This Update

watchOS 5.1 (build 16R5589c) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2018-10-22T17:19:44Z. The update package is 749.08 MB. This is a delta (partial) update that requires 4.3.2 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 2dd2e88067188dc428bf54463745670d084ae84f.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-16413/B778052C-D3BD-11E8-8E61-5C8955D8F596/com_apple_MobileAsset_SoftwareUpdate/2dd2e88067188dc428bf54463745670d084ae84f.zip