watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

365.76 MB

Release Date

2018-01-25T18:04:41Z

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 15T5165e) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-01-25T18:04:41Z. The update package is 365.76 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 21c93d4b4ea687c6c1616cf9fefc1c6fadb876a8.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63428-20180123-C32773BE-FE2D-11E7-8FB3-70EB5209FAF2/com_apple_MobileAsset_SoftwareUpdate/21c93d4b4ea687c6c1616cf9fefc1c6fadb876a8.zip