watchOS 5.1

watchOS

Version

5.1

Build ID

16R5568d

File Size

590.94 MB

Release Date

2018-10-02T17:15:01Z

Update Type

Normal release

Delta update - requires 5.0 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 2018-10-02T17:15:01Z. The update package is 590.94 MB. This is a delta (partial) update that requires 5.0 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 538335a0dade8ada90017c9d943d1aa1f3181c0c.zip.

Direct URL

http://updates-http.cdn-apple.com/2018FallSeed/patches/041-08264/7DC21718-C275-11E8-81CA-C204A6D7206E/com_apple_MobileAsset_SoftwareUpdate/538335a0dade8ada90017c9d943d1aa1f3181c0c.zip