watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T6567

File Size

74.87 MB

Release Date

2018-05-29T17:09:41Z

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 3 (42mm, LTE) →

About This Update

watchOS 4.3.1 (build 15T6567) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-05-29T17:09:41Z. The update package is 74.87 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 1a1193ff9ec645291f70c162ac740f52ea9d774e.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-83957-20180529-07A1B0B0-5ABB-11E8-A138-BB4942FD93D5/com_apple_MobileAsset_SoftwareUpdate/1a1193ff9ec645291f70c162ac740f52ea9d774e.zip