watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102

File Size

74.88 MB

Release Date

2017-12-05T18:01:57Z

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 (42mm) →

About This Update

watchOS 4.2 (build 15S5102) is an official Apple over-the-air update for the Apple Watch Series 1 (42mm), released on 2017-12-05T18:01:57Z. The update package is 74.88 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 b5cdc5ceb8d4f6fbf1f4839ed16561ba3fbca8ca.zip.

Direct URL

http://appldnld.apple.com/watchos4.2/091-43132-20171204-1244117C-D481-11E7-B6C4-833F2EDC3D3E/com_apple_MobileAsset_SoftwareUpdate/b5cdc5ceb8d4f6fbf1f4839ed16561ba3fbca8ca.zip