watchOS 5.1

watchOS

Version

5.1

Build ID

16R5577c

File Size

577.97 MB

Release Date

2018-10-09T17:11:47Z

Update Type

Normal release

Delta update - requires 5.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (42mm) →

About This Update

watchOS 5.1 (build 16R5577c) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-10-09T17:11:47Z. The update package is 577.97 MB. This is a delta (partial) update that requires 5.0 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 a1e4827e3d1cfccc800541696e4122c9e9fc7393.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-12167/944C7C18-C8BE-11E8-A1CB-297F6D2878E5/com_apple_MobileAsset_SoftwareUpdate/a1e4827e3d1cfccc800541696e4122c9e9fc7393.zip