watchOS 5.1

watchOS

Version

5.1

Build ID

16R5568d

File Size

432.97 MB

Release Date

2018-10-02T17:14:46Z

Update Type

Normal release

Delta update - requires 5.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm, LTE) →

About This Update

watchOS 5.1 (build 16R5568d) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-10-02T17:14:46Z. The update package is 432.97 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 43597c0cf78b56bac25b521533d799c1fe724a9e.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-08293/DBCFC2CA-C274-11E8-ACE2-C1EC9B987C87/com_apple_MobileAsset_SoftwareUpdate/43597c0cf78b56bac25b521533d799c1fe724a9e.zip