watchOS 5.1

watchOS

Version

5.1

Build ID

16R5589c

File Size

133.71 MB

Release Date

2018-10-22T17:19:51Z

Update Type

Normal release

Delta update - requires 5.1 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 2018-10-22T17:19:51Z. The update package is 133.71 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 87642d3a4591986e63ec1cc13b99053f96ef4e3b.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-16438/39E48FC2-D3BD-11E8-8A2D-3F7655D8F596/com_apple_MobileAsset_SoftwareUpdate/87642d3a4591986e63ec1cc13b99053f96ef4e3b.zip