watchOS 4.3

watchOS

Version

4.3

Build ID

15T5212a

File Size

325.6 MB

Release Date

2018-03-16T20:09:15Z

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 2 (42mm) →

About This Update

watchOS 4.3 (build 15T5212a) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2018-03-16T20:09:15Z. The update package is 325.6 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 cd5fc83648525c0343b7a4261e7fb3c5daa45f85.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-73318-20180316-A81F7F00-27C0-11E8-A7C8-E43FC3BE6990/com_apple_MobileAsset_SoftwareUpdate/cd5fc83648525c0343b7a4261e7fb3c5daa45f85.zip