watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

350.94 MB

Release Date

2018-01-25T18:04:48Z

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 15T5165e) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-01-25T18:04:48Z. The update package is 350.94 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 ab60552128ce0de573b8bc741c3826061dbcac44.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63536-20180123-6CEB6C20-FE2E-11E7-B816-93FD5209FAF2/com_apple_MobileAsset_SoftwareUpdate/ab60552128ce0de573b8bc741c3826061dbcac44.zip