watchOS 5.1

watchOS

Version

5.1

Build ID

16R5559d

File Size

547.54 MB

Release Date

2018-09-18T17:23:02Z

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 (42mm, LTE) →

About This Update

watchOS 5.1 (build 16R5559d) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-09-18T17:23:02Z. The update package is 547.54 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 6c48ba74701468926879eb6d7d7fc33d7b92a554.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/091-97026/F8EFB2CE-B852-11E8-B231-E8506D2878E5/com_apple_MobileAsset_SoftwareUpdate/6c48ba74701468926879eb6d7d7fc33d7b92a554.zip