watchOS 5.1

watchOS

Version

5.1

Build ID

16R5568d

File Size

733.62 MB

Release Date

2018-10-02T17:14:22Z

Update Type

Normal release

Delta update - requires 4.3.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (38mm) →

About This Update

watchOS 5.1 (build 16R5568d) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2018-10-02T17:14:22Z. The update package is 733.62 MB. This is a delta (partial) update that requires 4.3.1 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 a583a933e75401ccc8bed1a32a18708ad9a9ae12.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-08462/BBCD3AD8-C275-11E8-BFF1-BE0D0584AA9E/com_apple_MobileAsset_SoftwareUpdate/a583a933e75401ccc8bed1a32a18708ad9a9ae12.zip