watchOS 5.1

watchOS

Version

5.1

Build ID

16R591

File Size

966.59 MB

Release Date

2018-10-30T17:20:48Z

Update Type

Normal release

Delta update - requires 3.1.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 5.1 (build 16R591) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-10-30T17:20:48Z. The update package is 966.59 MB. This is a delta (partial) update that requires 3.1.1 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 b49e72cef37afe576a9240ca32eef92f129bfd39.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallFCS/patches/091-90111/36AC89D4-D65D-11E8-8A9B-A8BC0E1E652B/com_apple_MobileAsset_SoftwareUpdate/b49e72cef37afe576a9240ca32eef92f129bfd39.zip