watchOS 5.1

watchOS

Version

5.1

Build ID

16R5589c

File Size

777.63 MB

Release Date

2018-10-22T17:19:16Z

Update Type

Normal release

Delta update - requires 4.3.2 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 16R5589c) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-10-22T17:19:16Z. The update package is 777.63 MB. This is a delta (partial) update that requires 4.3.2 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 ac531d87c0158aff1895228666d8c43399802656.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-16353/4039F17C-D3BE-11E8-9DD7-7C9555D8F596/com_apple_MobileAsset_SoftwareUpdate/ac531d87c0158aff1895228666d8c43399802656.zip