watchOS 4.2

watchOS

Version

4.2

Build ID

15S5085b

File Size

177.88 MB

Release Date

2017-10-30T22:06:56Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch (38mm) →

About This Update

watchOS 4.2 (build 15S5085b) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2017-10-30T22:06:56Z. The update package is 177.88 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 05bf2b6e015364ef76641b968f06679e277878a0.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-41509-20171031-1BD4E03E-BB47-11E7-A132-661B52DBC410/com_apple_MobileAsset_SoftwareUpdate/05bf2b6e015364ef76641b968f06679e277878a0.zip