watchOS 4.3

watchOS

Version

4.3

Build ID

15T212

File Size

686.23 MB

Release Date

2018-03-29T17:08:45Z

Update Type

Normal release

Delta update - requires 3.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 4.3 (build 15T212) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-03-29T17:08:45Z. The update package is 686.23 MB. This is a delta (partial) update that requires 3.0 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 f0bbe9568e23522aa246840341ef4c51560cf6c0.zip.

Direct URL

http://appldnld.apple.com/watchos4.3/091-44846-201803029-6B2AFB8E-2B93-11E8-AECD-7D2004115E15/com_apple_MobileAsset_SoftwareUpdate/f0bbe9568e23522aa246840341ef4c51560cf6c0.zip