watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102b

File Size

175.76 MB

Release Date

2017-11-17T18:16:52Z

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 15S5102b) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2017-11-17T18:16:52Z. The update package is 175.76 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 4d0b45f5a94915fc75840086d75293b9d906f731.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47403-20171117-DC475336-CA3A-11E7-9FFD-7397674CD23E/com_apple_MobileAsset_SoftwareUpdate/4d0b45f5a94915fc75840086d75293b9d906f731.zip