watchOS 4.3

watchOS

Version

4.3

Build ID

15T5199f

File Size

346.31 MB

Release Date

2018-03-06T18:07:59Z

Update Type

Normal release

Delta update - requires 4.1 installed first.

Download OTA

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

About This Update

watchOS 4.3 (build 15T5199f) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-03-06T18:07:59Z. The update package is 346.31 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 eb99f3796a5086602efd0ae95f5a39e5ae558549.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-71131-20180306-CFF2FCF8-1E53-11E8-A66E-9C2E564229C9/com_apple_MobileAsset_SoftwareUpdate/eb99f3796a5086602efd0ae95f5a39e5ae558549.zip