watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T567

File Size

661.92 MB

Release Date

2018-05-29T17:08:39Z

Update Type

Normal release

Delta update - requires 3.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 4.3.1 (build 15T567) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-05-29T17:08:39Z. The update package is 661.92 MB. This is a delta (partial) update that requires 3.2 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 7f37a9191a68030c478af4af78d9b44fc83e05ee.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-65931-20180529-38CFCC7C-5ABA-11E8-B2EA-0E4242FD93D5/com_apple_MobileAsset_SoftwareUpdate/7f37a9191a68030c478af4af78d9b44fc83e05ee.zip