watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

363.86 MB

Release Date

2018-03-29T17:09:13Z

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 (38mm, LTE) →

About This Update

watchOS 4.3 (build 15T212) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-03-29T17:09:13Z. The update package is 363.86 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 49b6dcef10fdf3f74004d7794048d2aee2e1f1ef.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-49093-201803029-A3777740-2B95-11E8-89EB-B33404115E15/com_apple_MobileAsset_SoftwareUpdate/49b6dcef10fdf3f74004d7794048d2aee2e1f1ef.zip