watchOS 4.3

watchOS

Version

4.3

Build ID

15T5176c

File Size

367.14 MB

Release Date

2018-02-07T18:10:05Z

Update Type

Normal release

Delta update - requires 4.1 installed first.

Download OTA

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

About This Update

watchOS 4.3 (build 15T5176c) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-02-07T18:10:05Z. The update package is 367.14 MB. This is a delta (partial) update that requires 4.1 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 ad61d8538e7e00b74d5d81f4c6d71a52370e35c2.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-64095-20180205-1488D558-07A3-11E8-B54F-174F315CC82B/com_apple_MobileAsset_SoftwareUpdate/ad61d8538e7e00b74d5d81f4c6d71a52370e35c2.zip