watchOS 4.3

watchOS

Version

4.3

Build ID

15T5199f

File Size

360.06 MB

Release Date

2018-03-06T18:08:30Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm, LTE) →

About This Update

watchOS 4.3 (build 15T5199f) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-03-06T18:08:30Z. The update package is 360.06 MB. This is a delta (partial) update that requires 4.2 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 f93e3d1dceb248c7c269c3a332ae3e8ae7cb0e8d.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-71009-20180306-448C7ACC-1E53-11E8-84A3-381D564229C9/com_apple_MobileAsset_SoftwareUpdate/f93e3d1dceb248c7c269c3a332ae3e8ae7cb0e8d.zip