watchOS 4.2

watchOS

Version

4.2

Build ID

15S102

File Size

179.74 MB

Release Date

2017-12-05T18:01:52Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 1 (42mm) →

About This Update

watchOS 4.2 (build 15S102) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2017-12-05T18:01:52Z. The update package is 179.74 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 4f3dd8ae1e08337ac6286d82e430b8f57b13268b.zip.

Direct URL

http://appldnld.apple.com/watchos4.2/091-27985-20171204-5F8AF596-D480-11E7-A46D-A3272EDC3D3E/com_apple_MobileAsset_SoftwareUpdate/4f3dd8ae1e08337ac6286d82e430b8f57b13268b.zip