watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

400.45 MB

Release Date

2018-03-29T17:09:12Z

Update Type

Normal release

Delta update - requires 4.0 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 2018-03-29T17:09:12Z. The update package is 400.45 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 4c2a6c63a3658646eb6dc9fd63d6581fe388d23e.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-44754-201803029-08DAE24C-2B92-11E8-AF52-501104115E15/com_apple_MobileAsset_SoftwareUpdate/4c2a6c63a3658646eb6dc9fd63d6581fe388d23e.zip