watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

331.34 MB

Release Date

2018-03-29T17:10:02Z

Update Type

Normal release

Delta update - requires 4.2.3 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 2018-03-29T17:10:02Z. The update package is 331.34 MB. This is a delta (partial) update that requires 4.2.3 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 6b046e1a20b3ca3f44703e851bb4699b7d3dbfd3.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-70275-201803029-D1009ADC-2B97-11E8-94A6-7E4B04115E15/com_apple_MobileAsset_SoftwareUpdate/6b046e1a20b3ca3f44703e851bb4699b7d3dbfd3.zip