watchOS 4.1

watchOS

Version

4.1

Build ID

15R5823c

File Size

137.78 MB

Release Date

2017-09-27T16:59:08Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 4.1 (build 15R5823c) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2017-09-27T16:59:08Z. The update package is 137.78 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 e766908f861f697f692f302c05e031a0a148c6ac.zip.

Direct URL

http://appldnld.apple.com/watchos4.1seeds/091-29678-20170927-5E1A22FC-9FBC-11E7-8B0B-044A6B179ABE/com_apple_MobileAsset_SoftwareUpdate/e766908f861f697f692f302c05e031a0a148c6ac.zip