watchOS 4.3

watchOS

Version

4.3

Build ID

15T5165e

File Size

337.45 MB

Release Date

2018-01-25T18:03:57Z

Update Type

Normal release

Delta update - requires 4.0 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 2018-01-25T18:03:57Z. The update package is 337.45 MB. This is a delta (partial) update that requires 4.0 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 86b2417a229903d88ed8f28ddf26fa833c72e8cb.zip.

Direct URL

http://appldnld.apple.com/watchos4.3seed/091-63613-20180123-ED51C94A-FE2E-11E7-8BA6-C30B5309FAF2/com_apple_MobileAsset_SoftwareUpdate/86b2417a229903d88ed8f28ddf26fa833c72e8cb.zip