watchOS 5.1

watchOS

Version

5.1

Build ID

16R5589c

File Size

53.83 MB

Release Date

2018-10-22T17:19:15Z

Update Type

Normal release

Delta update - requires 5.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 5.1 (build 16R5589c) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-10-22T17:19:15Z. The update package is 53.83 MB. This is a delta (partial) update that requires 5.1 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 4c9642c9812a29a2b4faa69b1dd1bc1922134977.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-16378/115E2FC2-D3BD-11E8-85C0-2D6F55D8F596/com_apple_MobileAsset_SoftwareUpdate/4c9642c9812a29a2b4faa69b1dd1bc1922134977.zip