watchOS 5.1

watchOS

Version

5.1

Build ID

16R591

File Size

145.13 MB

Release Date

2018-10-30T17:21:36Z

Update Type

Normal release

Delta update - requires 5.0.1 installed first.

Download OTA

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

About This Update

watchOS 5.1 (build 16R591) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-10-30T17:21:36Z. The update package is 145.13 MB. This is a delta (partial) update that requires 5.0.1 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 fb6bd18f29c9bf430d989cf8d81ce6f9bde77199.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallFCS/patches/041-08829/66F9F35C-D65C-11E8-A21F-FBA0F513C1CB/com_apple_MobileAsset_SoftwareUpdate/fb6bd18f29c9bf430d989cf8d81ce6f9bde77199.zip