watchOS 5.1

watchOS

Version

5.1

Build ID

16R5568d

File Size

753.7 MB

Release Date

2018-10-02T17:14:58Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

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

About This Update

watchOS 5.1 (build 16R5568d) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-10-02T17:14:58Z. The update package is 753.7 MB. This is a delta (partial) update that requires 4.3 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 f0da58f343b9fc228b64ab7a610a30b7f5685e83.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-08257/D1DA3542-C275-11E8-9D0D-AFF9A5BFBB36/com_apple_MobileAsset_SoftwareUpdate/f0da58f343b9fc228b64ab7a610a30b7f5685e83.zip