watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102

File Size

46.76 MB

Release Date

2017-12-05T18:01:45Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (38mm) →

About This Update

watchOS 4.2 (build 15S5102) is an official Apple over-the-air update for the Apple Watch Series 1 (38mm), released on 2017-12-05T18:01:45Z. The update package is 46.76 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 424d6b91c29a782c7d57a6a6181cc1f8188b91b1.zip.

Direct URL

http://appldnld.apple.com/watchos4.2/091-46729-20171204-26054A82-D481-11E7-AC80-E3432EDC3D3E/com_apple_MobileAsset_SoftwareUpdate/424d6b91c29a782c7d57a6a6181cc1f8188b91b1.zip