watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102b

File Size

79.45 MB

Release Date

2017-11-17T18:17:59Z

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 15S5102b) is an official Apple over-the-air update for the Apple Watch Series 3 (38mm), released on 2017-11-17T18:17:59Z. The update package is 79.45 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 b40ab2147c7233b392afe5c24048a3abd88ba733.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47470-20171117-194608AE-CA3B-11E7-9A4A-B6A3674CD23E/com_apple_MobileAsset_SoftwareUpdate/b40ab2147c7233b392afe5c24048a3abd88ba733.zip