watchOS 4.3

watchOS

Version

4.3

Build ID

15T5212a

File Size

633.08 MB

Release Date

2018-03-16T20:08:51Z

Update Type

Normal release

Delta update - requires 3.2.3 installed first.

Download OTA

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About This Update

watchOS 4.3 (build 15T5212a) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2018-03-16T20:08:51Z. The update package is 633.08 MB. This is a delta (partial) update that requires 3.2.3 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 5710f839a40948ae097c5f61fa39534aed1e2488.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-73510-20180316-B9D81E4A-27C1-11E8-A673-2B65C3BE6990/com_apple_MobileAsset_SoftwareUpdate/5710f839a40948ae097c5f61fa39534aed1e2488.zip