watchOS 4.2

watchOS

Version

4.2

Build ID

15S6102

File Size

53 MB

Release Date

2017-12-05T18:02:14Z

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 (38mm) →

About This Update

watchOS 4.2 (build 15S6102) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2017-12-05T18:02:14Z. The update package is 53 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 ba93bd627c59f17c06dc71d1bd4521dc48851e5f.zip.

Direct URL

http://appldnld.apple.com/watchos4.2/091-48275-20171204-2C10DA90-D481-11E7-9DC5-B4452EDC3D3E/com_apple_MobileAsset_SoftwareUpdate/ba93bd627c59f17c06dc71d1bd4521dc48851e5f.zip