watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T6567

File Size

133.54 MB

Release Date

2018-05-29T17:09:34Z

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 (38mm, LTE) →

About This Update

watchOS 4.3.1 (build 15T6567) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-05-29T17:09:34Z. The update package is 133.54 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 67b8e2d17224b7ca01efdcfe129237b981bd8a4d.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-77048-20180529-FA00E4DE-5ABB-11E8-BD6A-554EA3E35D9E/com_apple_MobileAsset_SoftwareUpdate/67b8e2d17224b7ca01efdcfe129237b981bd8a4d.zip