watchOS 4.3

watchOS

Version

4.3

Build ID

15T5212a

File Size

31.68 MB

Release Date

2018-03-16T20:09:48Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (38mm) →

About This Update

watchOS 4.3 (build 15T5212a) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2018-03-16T20:09:48Z. The update package is 31.68 MB. This is a delta (partial) update that requires 4.3 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 7ca0b9a9c9a0565ae73360bf18a7d4674e067bf7.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-73323-20180316-A81DE1C2-27C0-11E8-80E5-EE3FC3BE6990/com_apple_MobileAsset_SoftwareUpdate/7ca0b9a9c9a0565ae73360bf18a7d4674e067bf7.zip