watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

374.73 MB

Release Date

2018-03-29T17:09:12Z

Update Type

Normal release

Delta update - requires 4.1 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 374.73 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 a09307ad256762245e6c4e66de629004438f1061.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-44848-201803029-733716BE-2B93-11E8-AC6B-422104115E15/com_apple_MobileAsset_SoftwareUpdate/a09307ad256762245e6c4e66de629004438f1061.zip