watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

332.02 MB

Release Date

2018-03-29T17:09:53Z

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 2018-03-29T17:09:53Z. The update package is 332.02 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 597937bc45da0ec0175f51ed7bb557267548f295.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-49057-201803029-60B85CE4-2B95-11E8-B18D-592E04115E15/com_apple_MobileAsset_SoftwareUpdate/597937bc45da0ec0175f51ed7bb557267548f295.zip