watchOS 4.3

watchOS

Version

4.3

Build ID

15T5187e

File Size

335.79 MB

Release Date

2018-02-21T18:11:37Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 4.3 (build 15T5187e) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-02-21T18:11:37Z. The update package is 335.79 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 1f38765a173a4c8ac10e9f29f179757f32c25887.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-70209-20180222-8409C0E6-1341-11E8-B28D-D6C770E8E01E/com_apple_MobileAsset_SoftwareUpdate/1f38765a173a4c8ac10e9f29f179757f32c25887.zip