watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

331.88 MB

Release Date

2018-03-29T17:09:54Z

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 (42mm) →

About This Update

watchOS 4.3 (build 15T212) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm), released on 2018-03-29T17:09:54Z. The update package is 331.88 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 a10e5e14c4915da39662e63262b84200b569918b.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-49100-201803029-338B7D0E-2B96-11E8-BDAF-0D3804115E15/com_apple_MobileAsset_SoftwareUpdate/a10e5e14c4915da39662e63262b84200b569918b.zip