watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

311.81 MB

Release Date

2018-01-25T18:03:58Z

Update Type

Normal release

Delta update - requires 4.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch (42mm) →

About This Update

watchOS 4.3 (build 15T5165e) is an official Apple over-the-air update for the Apple Watch (42mm), released on 2018-01-25T18:03:58Z. The update package is 311.81 MB. This is a delta (partial) update that requires 4.1 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 fb50024708f3bd21d63d6124fb741faf9121bca8.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63576-20180123-AF196278-FE2E-11E7-B494-9C045309FAF2/com_apple_MobileAsset_SoftwareUpdate/fb50024708f3bd21d63d6124fb741faf9121bca8.zip