watchOS 4.2

watchOS

Version

4.2

Build ID

15S5085b

File Size

218.5 MB

Release Date

2017-10-30T22:07:38Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm, LTE) →

About This Update

watchOS 4.2 (build 15S5085b) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2017-10-30T22:07:38Z. The update package is 218.5 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 763f6b9ff49f1b7a6586ffe51eee36f49bcb7f26.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-41513-20171031-4DF8A3B6-BB47-11E7-83C8-922352DBC410/com_apple_MobileAsset_SoftwareUpdate/763f6b9ff49f1b7a6586ffe51eee36f49bcb7f26.zip