watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

613.82 MB

Release Date

2018-01-25T18:04:23Z

Update Type

Normal release

Delta update - requires 3.2.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 4.3 (build 15T5165e) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2018-01-25T18:04:23Z. The update package is 613.82 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 83782ca0a990774b1a252e3857e1e062aff4f1eb.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63566-20180123-AACFB9EC-FE2E-11E7-A9B9-D9035309FAF2/com_apple_MobileAsset_SoftwareUpdate/83782ca0a990774b1a252e3857e1e062aff4f1eb.zip