watchOS 4.2

watchOS

Version

4.2

Build ID

15S5100a

File Size

105.71 MB

Release Date

2017-11-13T18:04:36Z

Update Type

Normal release

Delta update - requires 4.2 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 15S5100a) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2017-11-13T18:04:36Z. The update package is 105.71 MB. This is a delta (partial) update that requires 4.2 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 0e6d81004a3b259bb1b1324568630e966a9f13cf.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47093-20171113-1D2D12C8-C658-11E7-9606-0F909D2103BC/com_apple_MobileAsset_SoftwareUpdate/0e6d81004a3b259bb1b1324568630e966a9f13cf.zip