watchOS 5.1

watchOS

Version

5.1

Build ID

16R5568d

File Size

754.72 MB

Release Date

2018-10-02T17:15:04Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

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

About This Update

watchOS 5.1 (build 16R5568d) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2018-10-02T17:15:04Z. The update package is 754.72 MB. This is a delta (partial) update that requires 4.3 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 2ae466ac8b4ca367522fd621ad2b476c5b5b5a46.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-08484/D1710662-C275-11E8-9579-E83DBF20A795/com_apple_MobileAsset_SoftwareUpdate/2ae466ac8b4ca367522fd621ad2b476c5b5b5a46.zip