watchOS 4.2

watchOS

Version

4.2

Build ID

15S5102b

File Size

51.57 MB

Release Date

2017-11-17T18:16:55Z

Update Type

Normal release

Delta update - requires 4.2 installed first.

Download OTA

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

About This Update

watchOS 4.2 (build 15S5102b) is an official Apple over-the-air update for the Apple Watch (38mm), released on 2017-11-17T18:16:55Z. The update package is 51.57 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 a0c2cf3a80f6d5000ec902f1b92b6393414666ff.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-47475-20171117-1E461498-CA3B-11E7-A5DC-36A5674CD23E/com_apple_MobileAsset_SoftwareUpdate/a0c2cf3a80f6d5000ec902f1b92b6393414666ff.zip