watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T567

File Size

810.27 MB

Release Date

2018-05-29T17:08:00Z

Update Type

Normal release

Delta update - requires 2.0.1 installed first.

Download OTA

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

About This Update

watchOS 4.3.1 (build 15T567) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2018-05-29T17:08:00Z. The update package is 810.27 MB. This is a delta (partial) update that requires 2.0.1 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 2e67fb292c38263dff80030f2439ddcc8d468674.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-65836-20180529-8A87E6D4-5AB6-11E8-80F8-432542FD93D5/com_apple_MobileAsset_SoftwareUpdate/2e67fb292c38263dff80030f2439ddcc8d468674.zip