watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

331.45 MB

Release Date

2018-03-29T17:09:38Z

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 (38mm) →

About This Update

watchOS 4.3 (build 15T212) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-03-29T17:09:38Z. The update package is 331.45 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 16d8d9e162e52c9e27f793ae6b61a1210047888b.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-49065-201803029-5FE58C10-2B95-11E8-9820-692E04115E15/com_apple_MobileAsset_SoftwareUpdate/16d8d9e162e52c9e27f793ae6b61a1210047888b.zip