watchOS 4.3

watchOS

Version

4.3

Build ID

15T5199f

File Size

360.02 MB

Release Date

2018-03-06T18:08:24Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

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

About This Update

watchOS 4.3 (build 15T5199f) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm, LTE), released on 2018-03-06T18:08:24Z. The update package is 360.02 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 717ae37aac2cd8d0783af7fbe277262d86dbc553.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-71027-20180306-4570BEC6-1E53-11E8-986C-7E1D564229C9/com_apple_MobileAsset_SoftwareUpdate/717ae37aac2cd8d0783af7fbe277262d86dbc553.zip