watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

353.22 MB

Release Date

2018-01-25T18:04:28Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 4.3 (build 15T5165e) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-01-25T18:04:28Z. The update package is 353.22 MB. This is a delta (partial) update that requires 4.0 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 06c772a24e4cfe4214ef9faabc19fb1b91f3bed8.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63485-20180123-086E019A-FE2E-11E7-8767-D0F25209FAF2/com_apple_MobileAsset_SoftwareUpdate/06c772a24e4cfe4214ef9faabc19fb1b91f3bed8.zip