watchOS 4.3

watchOS

Version

4.3

Build ID

15T5209a

File Size

306.66 MB

Release Date

2018-03-12T20:07:01Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

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About This Update

watchOS 4.3 (build 15T5209a) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2018-03-12T20:07:01Z. The update package is 306.66 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 83dff2f4211118d7147730c358dab61763617344.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-72824-20180221-E4D117F2-23D2-11E8-A067-DC7A5B3DAFD9/com_apple_MobileAsset_SoftwareUpdate/83dff2f4211118d7147730c358dab61763617344.zip