watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T5567a

File Size

102.19 MB

Release Date

2018-05-14T17:13:39Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

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About This Update

watchOS 4.3.1 (build 15T5567a) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2018-05-14T17:13:39Z. The update package is 102.19 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 49cbac4e78c717cd47fbb70e7e593e2b481ff0cd.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchosseed/091-84403-20180514-ABF012AC-5506-11E8-A7C5-ED2539D97EC1/com_apple_MobileAsset_SoftwareUpdate/49cbac4e78c717cd47fbb70e7e593e2b481ff0cd.zip